I decided I am going to save every syringe I ever use till the day they cure this thing. Its going to be years before I even fill that five gallon bucket then decades to fill a trash can.
Then maybe with a hot glue gun I can make something artistic out of a few thousand of them.
They are yours to do what you wish. Might be cool to see how many you use in a year.
When I was on MDI routine decades ago, I would use the same syringe until it started getting dull. I still do this with the lancets for my meter. I change them once a year. I probably have 100 boxes of lancets in the hall closet that will never be used. The pharmacy insists on giving them to me with my test strips.
When I used 17 strips a day, I tried to think of things I could build with them, kinda like miniature popsicle sticks. Now that I use a Dexcom, those days are over and I never did think of a semi-practical purpose for used strips. LOL!