Gremlins

From The Mythos Wiki

Gremlins are about as long-lived as Humans, or maybe a little less as they tend to live fast and get into all kinds of mischievous trouble. They’re incredibly tough, both physically and emotionally. Almost everything rolls off them, be it blows or barbs. An angry Gremlin is about as fierce as a rabid badger and a happy one will be effusive and, quite usually, drunk. They never hold grudges and will be fighting one minute and bear-hugging (well, knee-hugging) the next.

Gremlins are innately clever about mechanical things, but they don't have much wisdom about implementation. They are primarily concerned with making interesting stuff that does fun things. They are very image-conscious, and have a tendency to fall for trendy, gaudy fashion – a fact reflected in the items they craft.