If you've ever used a round knitting loom you know how easy they are to knit things such as hats, scarves, and socks. Making your own custom sized knitting looms can be easy and inexpensive. Most of the things you need you probably already have at home. You may need to go to the hardware store for the cotter pins, that will be used to make the pegs, though.
If you would like to learn more about using knitting looms here are some websites you can check out.
Choose a can that both ends can be opened with a can opener. You'll find some cans have a rounded type bottom that a can opener doesn't work on. Open up both ends of the tin can.
Being careful of sharp edges fold duct tape over the edge of the can so it covers the inside (where sharp parts might be) and the outside. Cover both ends.
Determine what you want your gauge to be (the closer your pegs are together the smaller the gauge will be). You might want to try something like 1/2" between each peg for your gauge.
Use your measuring tape and pen to mark the distance you want between each peg (cotter pin) on the side of the can.
Using the hot glue gun, glue the cotter pins to the places you marked.
Wrap duct tape over and between the cotter pins so it secures each pin.
Wrap a piece of tape over the edge of the can and between each cotter pin.
This last step is optional. And that is to decorate the can in anyway you like. You can wrap a piece of fabric around the can and secure it with glue or something. Or wrap Contact paper (self-adhesive shelf liner) around the side of the can.
Your tin can round knitting loom is completed and you're ready to begin to knit!