Here's a few:

Motor casing to hold tools. Larger one is from a garbage disposal. Not everyone likes this as it magnetizes the tools a bit.



Sprayer head on alcohol bottle for utility cleaning. Threads & sizes are pretty standard.



Master link tool from old wire stripper. Posted previously.



Vest wrapped with piece of latex tube. Makes it small and not slippery so it doesn't come out of jersey pocket.




Cassette tool handle from PVC pipe. Heat fitting with heat gun to soften and press over tool.




Glue brush stored in can.