I got a wad of those hard plastic "straws" that are usually seen on WD 40 cans. I found a drill bit close enough,but a touch larger and drilled out two of the more common tips(One for Tamiya one for most others) then epoxied the straw into the drilled hole. I spray into those small tapered cups with the bottom cut off into a jar. Sometimes though,when I want to save all the contents from a full can,I just rip the top off the can!!