I always wanted to play around with a knitting loom, but I won’t buy such an item!
Therefore I was delighted when finding the instruction on how to make a knitting loom from a plastic bottle.
For a begin she even added a tutorial for a much easier knitting loom from a toilet paper roll and some popsicle sticks (that’s no April Fool’s joke ;-))!
I will try the loom from the bottle in any case :)
Basic Loom and Board Instructions
There are two PDF files: Knitting Board Basics (ca 790 KB) and Loom Knitting Basics (ca 3300 KB)
She even added a tutorial on how to make mitered squares with a knitting loom (see also here at unikatissima the Patchwork knitting and the Module Sock)