I fear the spring in the stapler won’t be strong enough, but try this: open stapler, remove staples, pour in ground coffee, press tight, close stapler. Now, ev

I fear the spring in the stapler won’t be strong enough, but try this: open stapler, remove staples, pour in ground coffee, press tight, close stapler. Now, every press of the stapler will dispense one staple-size of coffee. Only 100+ presses for a cup of coffee :-) For sugar, pour in a saturated sugar solution and let it dry. You could also 3D-print sugar staples with saturated sugar water. That might have a slightly better chance of working.