Put away yer straws/pipes, etc.

I'm talking about that lil' open crack between the counter and the
stove. We gotta a perfect counter space, about 22"X23" for doing
baking kinda stuff, like biskies and pie doughs, etc, but I don't want
to see the overflow/sloppiness dumping flour down between. Seems like
someone makes a device that will keep the inevitable grain dust migration
out of this crevice. Any suggestions? Howzabout a DIY make-do
thingie till I can see if WallyWorld has a Chinese counter crack
closer contraption.

nb