Thumb tacks for air horns

[Radio Control Trucker]

My mother always found my "innovation" kind of enlightening. She thought it was really inspiring how I could see something useful for my trucks and their world in an ordinary daily item. Sometimes she'd look for things to help me in my builds and at times find things that I may have overlooked. She's passed on now, but I still look for items to use and think of her often.

- RCT

p.s. Thanks for the tip Mario. Good idea, Paul.