Pirates, cowboys, knights, super heros... Boys love to play pretend (who doesn't?) One thing (other than those mentioned) that my boys love to play is Secret Agent or Spies. I did a fun roundup of Secret Agent inspired fun.
The Paper Pony also had a fun Spy party
Love these Secret Agent kits from Shim and Sons
And this awesome Secret Agent box from Kristy Makes
What about this Spy shirt from Gymboree?
Or this Science Detective Kit from Steve Spangler Science
Do your boys play Spy/Secret Agent or some form of it?