Sorry I don't have any images, but I vividly remember in the early 90's having a couple of these neon coloured, hard plastic Dinosaur figures that were about the same size as a Monster in My Pocket, maybe a tiny bit bigger or more akin to a Bad Eggz Bunch. Specifically I remember having a neon pink Pachycephalosaurus (bonehead). It was quite well detailed and sculpted and was a solid block colour with the overall design having quite a tight look to it, no real long protruding limbs.
Since they are something as generic as plastic Dinosaurs in the 90's, I'm sure a million other toys fit that description. But something about that particular neon pink one keeps springing to mind.
Any ideas?