I found this idea somewhere on Pinterest (as usual), and decided to make one for a colleague for her birthday...
1. Start with an emptied and cleaned can, and a box of about 30 unsharpened pencils. Use a hot glue gun to adhere one pencil at a time around the can. Note: mine ended up a little crooked, so if I were to do this again, I'd probably use a level and draw some lines on the can ahead of time to use as a guide.