I can probably guess the last piece of corporate swag you received: It was most likely a t-shirt, a tumbler, or a Moleskine with a logo of a company you’d probably soon forget. But Jackson and Quincy Fuller, ages ten and seven, have a better idea: Stuffed animals, inspired by corporate logos and mascots. This June, the brothers—whose parents are Upfront Ventures general partner Kobie Fuller and kids’ clothing entrepreneur Shennel Fuller—founded Stuffers to help startups build better (and cuter) swag. “Stuff ...