"Right." Cathair wasn't about to argue, as she likely could do it like she said. He wasn't certain he trusted a cobbled together robot over something with millenia of reliable service. If it was good enough to take down Goliath and people were still using them today, it was good enough for him. Besides, it was easy to make a slingshot, they were cheap and fast and easy to replace. Now all he needed was a good sturdy U joint pipe, some sort of rubber belt and something to wrap about the bottom for a handle. All of which should be found here.
He fished a handful of the largest ball bearings out of the display and pocketed them. "Need a hand carrying all that?" he asked. Really, there was no reason to be rude and it wasn't as if he had anything better to do. "Oh, the note says there's brekky at some shop in town, although I'm not certain how much I trust the food here."