Flowey from Undertale

"I'll kill everything you love to eat for lunch" 

One kid had a Sans napkin, so the other needed Flowey.

Flowey starts out as a rather ingratiating flower with a face and later morphs into a more horrific form, particularly if you cross him. The line in the game is "I'll kill everyone you love."

Not sure how he does that without arms. 

Sans From Undertale Drinks a Juice Pack

For the record, our younger son prefers the grape flavor.

He was annoyed that I drew the pink lemonade.