If you need to use a spray can, but the nozzle is clogged, you could hunt around around for a sewing needle to pierce a hole, but there’s a better way.
If you weren’t careful enough to clear the nozzle of a spray can the last time you used it, it can be frustrating exercise in try to unclog it. Errol Davis from Mississauga, Ont., devised a quick and easy way to unclog a spray can. First, remove the nozzle from the can. Then, get a can of WD-40 and remove its nozzle and put the clogged nozzle on the can of WD-40. Finally, push down on the spray nozzle to a few times and it should clear the clog.