Courtesy our newest F.O.A.M. member, big-time comics pro Doug Hazlewood, comes this photo of the uber-rare Superman/Aquaman set made by Ideal in 1966.
I've seen pics of the larger sets featuring Aquaman and other JLAers:
As you can see, Aquaman was a bit of an afterthought on the packaging: Superman's logo couldn't be any bigger, and poor Aquaman has to settle for his name being in plain text.
These sets are crazy expensive in the package like this, I've seen similar sets on eBay go for thousands of dollars. Whoever owns the actual set the above pic is taken from, I'm betting it's a large chunk of their eventual retirement plan.
Thanks Doug, and welcome to F.O.A.M.!