Serendip is an independent site partnering with faculty at multiple colleges and universities around the world. Happy exploring!
Remote Ready Biology Learning Activities has 50 remote-ready activities, which work for either your classroom or remote teaching.
rollosome mods
Just a tip, I did see the foam rollers at the dollar store last week.
But, what I used were part of a "toobers and zots" kit. I had bought those kits to do protein folding, and there were all these extra foam pieces, some of which are like mini pool noodles.