I admit it, I'm a hoarder. In college I took home anything that the science departments would let me, even if it wasn't a current interest. On one occasion, while chatting with the head of microbiology, I got permission to take home the days pile of ~100 used plastic inoculation loops before they were destroyed with the promise that I would not get upset if I contracted E. coli I like yellow plastic loops because if you rub one against a print you can see exactly how much spores adhered to the loop. Here I demonstrate how they can be reused repeatedly without destruction.
The ones my college used were unreasonably long for my purposes so first I cut them down to a practical length.
Remember to wash the cut loops. I like to wash them, spray some 25% bleach in my palm, massage them in that, rinse, and dry.
After confirming that the plastic would not melt in my PC my first attempts were to just put them in test tubes. This caused them to soften and distort into sort of an S shape. I solved this by giving them a mold. Appropriately sized rectangles of heavy duty aluminum foil are cut and folded, then opened again.
The loops are placed inside and the foil is pressed firmly into them with ones palms and fingers.
If desired, they can be placed individually in foil covered test tubes.
These are then placed in a foil covered jar.
You know what to do from there
The loops do distort a little bit in their first use but I've found them to be quite stable after that.