None of the skull and tentacle designs have names which I find to be a hindrance to writing snappy copy about them. Actually, that’s not true. This guy (girl? Thing?) does have a name she’s (it’s? he’s?) "WWII" but that name is only used for record keeping and internal review. You can call it (her? Him?) what you want. Knock your bad self out.
Adult medium and large are Gildan. The rest are Jerzees.