70s SOCK SPIDER-MAN.

Hmmm, could do with one of these at the mo. A patented Spidey or, as an alternative, Incredible Hulk Bop Bag.

Myself and my fellow siblings did have a Superman one that was probably as old as this ad (from the back cover of Super Spider-man & the Titans UK comic #212, 1977), but it's long since disappeared into the dumpster of posterity. It was kept locked up in the garage and only allowed out for special occasions. The bottom was full of sand, which leaked, I seem to recall...