The Picadoos was one of the more creative of the thingmakers sets. This is the sort of toy that Jan Brady would have though was 'groovy'. Although primarily intended for the girl thingmaker crowd, it did have some apeal for the boys as well. (Molds were a grid of squares, or dots, that filled up the mold, so you could make designs by using different colored goop. You could also put the grids together to make a bigger picture.) The molds might be described as bas-relief graph paper. Like a needlework sampler, by putting different colors of goop in the 'pixels' you could make a picture. It's just pixels rendered in goop! You would fill in your dot pattern in one color, bake a while, then fill the rest (background) with another color. These blocks could be combined to form larger pictures. "Decorator dots combine for endless designs."
I would imagine that many pixel pushers of today started out plotting out large pictures using thier Picadoos.
There was also a large booklet with many large patterns to attempt. This may have been sold seprately as it was much larger than the instruction manual shown in the box below.
The mold from this set were rather dull. Suffice it to say that some were double sided and most looked like some kid of graph paper. One looked a bit like a cross stitch pattern. At some point, when I get ambitions and have tons of time to kill I plan on making a very large picture of Virtual Vikki with my Picadoos set and hang it on the wall. In the photo below is shown the plastic seal on the inside of the Picadoos box. I understand that these seals (present on many thinkmaker kits) were sometime very detailed. and finding one on a set is very rare. Also note the card insert on the top of the Thingmaker's heating element. Anyone remember reading those?
Special thanks to Don Dortmund for the follwoing information. The set came with the following colors pink, green, yellow, red, black, white, orange, clear goop! The 8 colors mentioned above, in 3/4 ox bottles. The bottles have the 'oversized' top on them that was used on all the larger bottles. The goop has a 1966 TM on the label, although the Picadoos set is 1967. The labels have red or orange Mattel logos on them and do not have the goop color printed on the label,... EXCEPT for the clear goop.