Without looking for it..
4 = little stool
6 = "reins" for the big seahorses
21 = indian horse headdress
(next to that one, a grey squarish) = plate for the victorian photographer
25 = bars for cell (like in the pirate prison)
29 = handle from swing in playground
32 = for the sails in pirate ships (I THINK - in the mast)
39 = torch "base"
40 = at least used in the ancient fire trucks, to put the "hose rolls"
46 = sign for the back of the bike
47 = breathing tube for divers