These pens are not the easiest to take apart. The pen opens and closes by twisting the bottom of the pen. To remove that portion I closed the pen all the way and then while twisting it closed I pulled the bottom portion out of the barrel.

You actually need to use a little force to get that portion of the pen out. I was afraid I was using too much pressure but that is how it comes apart.

With the bottom portion removed the top comes off easily.

We'll only be sublimating on the white barrel of the pen. Everything else needs to be removed.

For my customized sublimation pens I am using floral sublimation prints.

I printed a full-page floral sublimation print. For the full page, I used a paper cutter to trim it close to the size of my pen.

For this specific pen, the length is just over 4 inches so I cut my length to 4.25 inches. To wrap all the way around the pen barrel with a little overlap I cut the size to 1 3/8 inches.

Because these floral prints do not repeat there will be a seam where the edges come together.

To get away from that seam I tried a couple of different options. The first option was to rip the paper along the long side. With the paper ripped they don't meet exactly so there will be a white area that is kind of jagged. I thought it would be a cool effect.

As you can see in the photo above I have four different pen design options.

In the first design on the left, I added my name to a floral print. Using a paper cutter I trimmed it to the right size for my pen with my name centered on the design.

The second pen from the left has that same design but this time I have torn all four sides to give it a different look.

The third pen design is just floral but I tore the long edges so they don't like up perfectly.

The final design is a floral print trimmed to the right size to overlap slightly on the long side.

Reminder - these floral prints don't have a specific direction. If you add text or any design that is directional you need to make sure you mirror your image.

Before applying the sublimation print to the pen barrel we need to clean it really well. Using a lint roller can be difficult so I like to just tear off a sheet and wrap it around the pen to clean it.

With the sublimation print that is cut full size, to keep the design from bleeding through where it overlaps I found that adding a piece of heat-resistant tape to the back of one long side will keep the seam nice and crisp.

The sublimation print won't transfer through the heat-resistant tape. Since the pen is so small the seam will be visible. I want to make it look as nice and clean as possible and this is a great way to do that.

With the tape on the back of one edge of the print, we want to wrap the print around the pen. Make sure the taped edge is on the bottom.

Use at least three pieces of tape to pull the print tight around the pen barrel.

For the designs that don't overlap you can use a few pieces of tape to secure the print around the pen.

You can see in the photo below that some of the pens will have a white area along the seam and some will overlap a little.

With the sublimation prints taped into place, we can add the pens to the shrink wrap.

Just slide the wrapped pen into the shrink wrap sleeve making sure they are centered into the wrap.

With all the pens in the shrink-wrap sleeves, it's time to shrink them. Using a heat gun, go over the whole pen. You'll see the sleeve shrink down tight.

Don't hold the gun in one place too long, the heat gun can melt a hole in the shrink wrap if held in one place too long.

I applied heat until there were no wrinkles. We want everything tight on the surface of the entire pen barrel.

I wear a heat-resistant glove to hold and move the pens and I recommend a heat mat to protect your table surface.

With the shrink wrap finished it's time to add them to the oven.

I am using my PYD Life sublimation oven but any type of convection oven would work. For this size project, you could even use an air fryer.

You do need to know that if you're going to use any oven or air fryer for sublimation you can never use it for food again. Due to gasses being released into the oven it is no longer food safe.

My oven temperature is set to 375 degrees. These pen instructions say to bake for four to six minutes. I am going to try for five minutes.

As soon as you remove them from the oven, put them on a heat resistant mat. You can see that the tape is more visible after baking. You may even see some of the sublimation print through the shrink wrap.

You should remove the shrink wrap quickly after taking the pens out of the oven. Shrink wrap can become more difficult to remove as it cools.

I wear heat-resistant gloves so I can remove the shrink wrap and sublimation print while the sublimation pen blank is still hot.

Because of how small these pens are they cool very, very quickly. Thankfully the shrink wrap that came with the pens is sort of perforated so that is helpful.

You can see that on the first pen, the floral sublimation is beautiful.

The more the pens cool, the harder it is to get the shrink wrap off. These aren't horrible but not what I would call easy. If you can remove the shrink wrap as soon as it comes out of the oven that would be best.

Removing the shrink wrap from all four pens did take a long time. Don't allow it to cool if you can avoid it.

Note - when hot, the shrink wrap was really soft. I would keep the pens separate in the oven so they don't melt/stick together.