A couple of weeks ago I saw a post on here about a lighting rug. I had shirt-yarn laying around that I didn’t know what to do with and appartenly my parents had a christmas light tube they didn’t need anymore.
If anyone wants to try this: I used this tutorial. It’s both in Dutch and in English. It’s a pretty good one but I found I had to increase more than she had to, otherwise the rug wouldn’t stay flat. Good luck!