I remember one year for christmas, I got a spiderman playset. It was this fold out thing of a cityscape and there was a tube of gel that you were supposed to apply to one rooftop and string the gel to the next rooftop and so on. Apparently, the goo was strong enough to hold the spiderman figurine so he appeared to be suspended by a web.

Does anyone remember this? What was it called? Where can I find pics of it?

I had this, too, sometime around '78. Tiny little yellow Spidey figure, right? iirc I never could get the goo to hold the figure. Have not seen one since, but you know everything turns up on ebay eventually.