Some of us use spray cans of finishing products to protect our projects. Using a spray can while holding down the button with an achy finger was challenging at best. Then I saw these grips for spray cans in the paint section and bought one. I can’t describe what a difference the grip makes. It makes a can of spray behave like a spray gun. You get great control over aiming and starting/stopping the spray. There seem to be grips made by many spray paint brands as well as a few generic tool brands. Just google it to see.
[Below] The grip fits on the top rim of the can, allowing a trigger/lever to activate the spray. You only need to take care that the nozzle is pointing out through the gap, otherwise the inside becomes a pretty color!
[Below] The grip also fits the short cans that are usually made for model builders.
[Below] And if you’re into pyrotechnics in the shop, the grip also fits aerosol fire extingishers!
(Disclaimer: the grip shown is the cheap Rustoleum one. They offer a fancier one. I have no official association with Rustoleum aside from being a purchaser of their products.)
-- Ni faru ion el ligno!