There are quite a few different helmets, a bit on the small size for a lot of joe heads but would fit af figures perfectly... his shops is offline at the moment due to the joecon but will be back up soon...
the tube was molded from the dolphin headpiece, I took a mold from the end piece that is supposed to plug into the sealion. the orange colour you can see is the original colour of the resin.
the mold for the helmet was made using a ball bearing and a tapered washer ! I then cast it in resin and dremmeled the inside out until it fit on his head.
the figure stand is a piece of 3mm perspex with a hole drilled through and a small peg inserted for the foot hole. So its a homemade one !