This is a rainbow loom pen that I made. I made the grip on the monster tail and added a charm. Then, I took out the ink stick from a pen and put it inside the grip.
This is an original hook-only design by @sianny_tan which I have adapted to be done on 2 LONG pegs. You do need long pegs to do this, so break out your pencils!
This is an original hook-only design by rainbowloomsg which I have adapted so that it can be done on 4 pegs. What makes this bracelet a challenge is keeping track of all the steps.