Who would have thought that an R rated movie will get a coloring set for ages 3. In 1991, T2 was just about on anything, and children accessories were not excluded. A company called The Toy Group Inc produced two coloring paint by numbers sets based on T2 in 1991. One was Paint By Numbers with light, another is a regular Paint by numbers with crayons.
Those two are virtually impossible to find nowadays. I looked for that one for well over ten years to appear on eBay
Here's the packaging and some sample pages. Not sure if some of those are suitable for children tho...