After picking up a carded Frogman adventure person a few weeks back I started keeping an eye out for more loose figures. They don't really turn up that often on ebay here in the UK, there are loads in the US, but with high postage costs they aren't very good value. Occasionally you will see them turn up on the UK site, and have been bidding on any largish lots of them. And I have got lucky a couple of times and got a handful for about a quid each figure.
And this is my collection so far:
The space figures are by far my favorite, they just look extra cool. And the X-ray man reminds me a lot of the vintage Tron toys. There are some figures that seem to be very common, I already have a pile of the orange bike guys, and 3 extra of the blue guy with the headset.
A lot of the figures re-use body parts from other figures in the line. The Frogman that started me off on this collection is also available in yellow with a mustache, and his head is used in a number of the astronauts. But you will see plenty of other figures that are just straight re-paints.
These are now on my list of toys to keep an eye out for. And they should be an easy set to complete as there are only 70 odd figures in the entire line.