I wouldn’t call most computers “cute,” but I’ll make an exception for the CuBox-i mini-computer from SolidRun. It fits all of its hardware, including an HDMI port, IR receiver, and USB ports, into a 2-inch square black box. It runs Android and Linux. It’s like a pet rock that’s actually useful.
There are a handful of permutations of the CuBox-i, but the the CuBox-i1 is a real attention-getter, based mostly on its super-low $45 price tag. It comes with a single-core GC880 GPU and 512MB of memory. Those specs aren’t going to blow you out of the water, but at that price, they don’t have to.