These are some character rockets made for use with Pringles cans. The two from the popular video game series use the mini Pringles cans (or half a regular can) and the original design Rocket Boy uses a full regular Pringles cans.

You will need a shock cord and Parachute for these rockets (at least 18"). You'll also need a Pringles can. I used a smaller snack pack cans for the smaller rockets but these could also be made with a regular or even extended sized can (they're all the same diameter). You do NOT need a motor tube as the motor mount is integral in the 3D printed parts.

Some of this is redesigns from other people's work mainly to make them into nose cones that will fit a Pringles can. So for full attributions:

Bullet Bill is from: https://www.myminifactory.com/object/3d-print-bullet-bill-26743 Boo is from: https://www.thingiverse.com/thing:2824758 I got the tongue for Rocket Boy from: https://www.thingiverse.com/thing:644879/files

Rocket Boy's tooth has a flat surface and you should use your slicer's "Lay Flat" option on that surface. Then duplicate it and switch the duplicate left to right to make the other tooth. Or just use one tooth...or none. It's your rocket!

The fins are made to slot into the base but if you use a full Pringles can like I did on Rocket Boy you should glue along the body as well at least on the fin that has the launch lugs.

I only got a photo of Boo in flight (212 feet high) on a C6-3. But here are links to the videos of the other two:

UPDATE 10/17/2021: I updated the motor retainer and base plate to utilize a twist off action rather than a screw action. It's a little easier on printers, is easier to use, though it might take a little more cleaning to fit. I also removed the 18mm options from this as these rockets really should be flying on a D motor or above.

Bullet Bill: https://www.youtube.com/watch?v=QJFVhJpW4Io Rocket Boy: https://www.youtube.com/watch?v=Xi7_6ZXagdM