Tony wasn't an idiot, sure he could stumble over himself from time to time and be painfully embarrassing at others, but he was observant, and there was something going on with Steve today, he didn't know exactly what, but he had a feeling it had something to do with the favor he was working his way up to asking for. So he'd just wait to reserve judgement about it all until Steve managed to get it out for him.
He grinned when Steve assured him he was the man for the job, it was nice to know that someone had some faith in him too - even if it ended up being over something small. He hadn't expected what Steve offered him though, and as he took it in hand he realized what it was too. "Oh wow, where did you get this? It just showed up there? Did you have it before? Do you know what this is? Wow, this is so cool." It was maybe not the largest amount of vibranium that Steve could have offered him, but it was plenty more than he'd expected and the amazing thing about vibranium was that you never needed much to make plenty of things.
"God please, I think we're all over the horror now." He agreed with a laugh, "SO what do you have in mind Cap?" He asked, already imagining all the possibilities for something like this. "We gonna make something for the town?" He guessed, raising his eyebrows curious.