SmartBuff can do elixirs and temporary item buffs for sure, though wont announce it to anyone but yourself.

InventoryOnPar can score your gear and show you where you are missing enchants at a glance, and mostly do the same for anyone you target.
Or automatically record what your party has, if they are in inspect range, and show you fairly easily.

IOP is a nice addon in any case, good for telling at a glance how good gear someone has (to a fair degree) if you are considering bringing them to a group or raid for example (this statement is not as boxing related as the above lines).