This is a compliment color project that all my 3rd, 4th and 5th graders worked on this past year. I love black glue and the results, but I don't always love mixing the the glue with paint. I've done it all. For many years, I did glue with india ink. If you don't get the proportions right, then it gets really gummy.
I've done glue with black acrylic, I get very similar results...too gummy. I've done black tempera with glue, which seems to work alright, but they seem to turn quickly, and tempera just stinks, so there's that.
This is a beautiful solution, although right now, an expensive one! With the slime craze going on right now glue in general is expensive, but especially clear glue.
The clear glue on the black construction paper shows up black, and as a little bonus, it's SHINY!
The results are fabulous and super easy. And you don't have to spend several hours mixing up black glue that may or may not work for you.