When I model, especially as I get into it from a fresh start, I've found that spray cans can be a useful supplement to brush and airbrush painting.
But as I'm older I also don't want to do things that are hard on my hands. Holding down the dispenser nozzle on the spray paint can can get tiring if you do it in a long painting session. I also can't tell you the number of times I've pressed the nozzle only to find that I didn't aim it quite right and paint sprayed off target until I adjusted.
I picked up the Master Airbrush Instant Aerosol Trigger Handle to help with these issues. This device is sold on Amazon as a pair for about $15. I have also seen similar items sold in singles at local hardware stores.
The device is a handle that you affix to the top of the spray can and it has a trigger mechanism that you can depress with your finger or hand while using a more natural grip. As long as you install it correctly on the spray can, it also allows you to aim the spray. Spray cans are pretty universal in design and this means the handles can be installed on nearly all cans. I like that the clamping mechanism on these that has plier-like pincher handles. I have seen some variations of this tool that have to be snapped on or slipped on, and their less flexible fastening points might be more prone to breakage.
It seems a small thing, but I liked these simple utility items. They did make using the spray cans a little easier and more comfortable to use. They seem fairly durable to me, though not invincible; you will need to take care to be gentle with them as they involve using bendable plastic to secure themselves to the cans. But they should last for many uses and will be useful especially for those with limited agility or grip.
