"Then just because I may need these tools again in a 100 years I sprayed a little paint on them to prevent them from being discarded as scrap iron After I forget what they were "

Hopefully with a label saying WHAT they are when you recognize that "I painted this so don't think it's scrap, but damned if I remember what it's for..."

At home I have a large 8-inch spike I very carefully bent in a certain shape, so I know it's a tool i made but I cannot remember what it does.