Here is an idea I had once completely annoyed of handling the big cans of epoxy and their fiddling pumps for mixing small batches of resin.
I received a brand new 5l 2 pack epoxy system for Christmas (what better gift one can get?) and since the cans are full to the brim it is a bit of a handful sometimes to prepare small batches of the magic potion.
Therefore I cleaned up two bottles of Heinz' best and filled them with resin and hardener (one each, separately!)
It makes for much more handy pouring over the yogurt pot on the scales. Also these bottles have a drip stop rubbery seal that works marvel to avoid spillage and the odd drop that escapes and makes the workbench forever sticky.
My son burst into loud laughter the first time he saw them saying "Dad look!!! blue and yellow ketchup!!"
... I might have to add warning signs on them!!!