ORIGINAL: yeahbaby
you can reuse the applicators by letting them soak in acetone. the little squiggly thing inside the applicator can be removed with a pair of needle nose pliers etc. then just place the appplicator tip and squiqqly thing in a mason jar or equivalent container. after some time the aeropoxy just settles to the bottom of the container. pull out the applicator, wipe it down, allow to dry and then re-use.
I use a variation of the above idea ... I pull the inner section out of the nozzle and drop both parts in a jar of acetone for a few minutes. Then I pull them out to clean them - a pipe-cleaner does a great job of cleaning the outer, while a toothbrush (used gently) cleans the inner part very well. With this kind of approach, a nozzle can last you several weeks. (And since I bought a bag of 200 nozlels, I'm probably set for life
)
As for the issue of "losing" some epoxy in the nozzle - sometimes I mix the glue up without using a nozzle (just make sure that you REALLY mix the parts well - it takes more mixing than your average runny 5 minute epoxy !), but I also have a "dry-erase" board next to my building area, which I keep all sorts of notes on - including one area that I set aside for listing the areas that I need Aeropoxy on. That lets me do the Aeropoxy work in batches to minimize waste, without having to worry that I should glue each area before I forget about it.
Gordon