Ooly Magic Puffy Pens, Puffy Popcorn Drawing Pens Set of 6 Neon Colors with 3D Ink, Add Heat & Watch Art Grow, Creative Markers for Kids & Toddlers, Fun Art Supplies for Drawing & Coloring

These are so much fun!! We used a heat gun, didn't even have to wait for them to totally dry. The kids and I love them!

I think I received a faulty pack. None of the markers puffed up. All of the caps ended up falling off after one use causing such a mess. Definitely not worth the money.

The media could not be loaded. These are awesome! So fun and works so well! My 6 and 8 yr old were able to easily draw and heat up (with just a bit of help). The instructions say to draw and then let dry before heating - just an FYI.

I love the idea of these pens and they keep my kid occupied for a good amount of time, however they are hard for her to squeeze out while drawing and they take a lot of heat time to puff up. Some colors puff up better than others. You need thicker layers and overall just too much effort to use. Would only recommend for older kids and adults.

They arrived on a timely fashion and they work superb!

Did not work well after quite some time with the blow dryer. Stained my hard wood floor as well when my daughter made a bit of a mess with them. Returned. Would not recommend.

These pens are so much fun! My kids will play with these for hours on end! The trick is to have an embossing/heat gun on hand that you can get at any craft store. We tried using a hairdryer and it didn’t work but puffs within 30 seconds of using the embossing tool!

The pens were easy for me to use but took some trial and error by my granddaughter (7 yo for whom they were a Christmas gift). But she had fun with them and was amazed that they did really puff up as advertised.