The paint needs to be on a surface that doesn't absorb them before they have a chance to work so they don't work on paper. I used glossy card for the pear and square samples at the top of the photo. I worked well. How thickly you apply the paint determines how big the dots are in the Prisme paint.
This is a closeup of the pear that was outlined with the Viva gold paint. It was then painted with gold Moon paint and a bit of white Prisme. The Moon paint has made the prisme sink to the bottom so they don't really mix together at all.
The hearts were done with the Viva outline and Moon paints but the viva gave way and paint ran everywhere. They were tried on some Tyvek in the hope that I would be able to stitch through them later. The tyvek buckled like paper so that was another reason the paint ran everywhere. I won't try the tyvek again.
I did some pears when I was trying the tyvek fabric and although the paint went everywhere I was able to cut out the shapes of the pears and use them in this textile art piece. I had left them to dry for at least a week so I could easily sew through them with my machine.
I still wanted a thin surface that would be stitchable so next I tried some clear cellophane. I taped it to a piece of card to hold it flat and it has worked. This was a cellophane packaging bag that a birthday card had been in. I cut it up and used it here.
I had some Scribbles fabric paints that are dimensional so I tried them for the outlines. They worked really well when I let them dry first but it meant I could draw any shape I wanted. The christmas ornaments were those silver stickers you see at craft shows that are meant for cards. Although they worked it was fiddly work and I won't use them again.
My final experiment was to use the packaging bag again and a bought stencil. I used a permanent marker to trace the stencil onto the packaging that I had taped to the back of a green cutting mat (it was the closest thing to me at the time, lol). I then outlined the design with the black Scribbles paint. When it was dry I filled in each section with the Prisme and Moon paints. I didn't want the paints running into each other like before so I did areas that were not touching first and let them dry before filling in the rest. I am now waiting for this to dry so I can use it somehow.
I have had a blast trying new things with these paints. We all love learning new things don't we? It really sparks my imagination in a hundred different directions. Although meant for canvas paintings these paints will surely inspire many mixed media artists too.