Summer reminds me of 7-Eleven Marvel Slurpee cups. Over 15 years ago I was in a antique curio shop somewhere and noticed this cup was for sale.
I think at the time it was only $3! I remember buying this in the 1970s...only to throw them away at some point. Who did the drawing used for the cup? I was pretty sure it was Brunner but then the inking doesn't look like it was by Dick Giordiano.
This was taken from the splash page of Marvel Premiere #9 from 1973, art by Frank Brunner and Ernie Chua -- the Conan inker (aka Ernie Chan), a genuinely nice guy from a couple of cons I've attended. You can see the figure of Doc Strange was tilted a bit straighter, and someone must have simplified the inking and certain details, but it is basically the same figure. Nuff Said!