I've made a few blue rep items for ppl who've provided an augment and offered a tip. Upfront I tell them I will not accept the tip if the augment fails - which seems a fair thing, partic if the tip and augment are about the same value - it's clear that I'm not pocketing the augment if I say it fails because I have nothing to gain.

Some sort of message (unique crafting msg colour) broadcast to the party when a recipe fails and the augment is consumed would be good.

Eg. "Friar Tuck fails to make Polished Runebirch Quarterstaff, Pulsing Golem Core is consumed!"

Nice, independent verification and breaking of the bad news to the buyer!