A simulation vein for my preceptees out of the soft face part of the O2 tubing full of cranberry juice for the vein, a knot on one end and an IV / syringe on the other for pressure, and a mepilex over it for the skin / soft tissue. I can make sure they know how to get the needle in and out and activate the safety properly before I let them stick me a couple times for practice before moving onto a patient.

We have enema bottles full of mineral oil that I use to grease hinges and wheels. Really the hospital supply room is macgyvers wet dream it's one of my favorite parts of night shift nursing.

Also my dog chewed out the back of my zip up hoodie so I used Elmer's as basting glue and put the inside of an upholstery style pillowcase from goodwill on the inside, sewed a fun shape around it, then made a cutout back patch. And the reason that hoodie even has a zipper is because I had to put one in after the EMTs scraped my drunk ass out of a ditch and cut it off.