135mm x 135mm square greeting card from Broadway, by Connor H G, our resident art monkey.
I suppose you could use them as a weapon for inflicting paper cuts.
Ninja stars aren't a weapon. They're stickers they get when they've been good and helped around the house and stuff.
Blank inside, for your own secret, extra special, awesome message (if you're actually giving it to someone else, otherwise, use the space wisely...)
Supplied with white envelope.
Image © Connor H G 2018 Do not reproduce, copy or edit without the artists permission.