Here is a goal: What do you need to make a reverse glowing jack-o-lantern?

Which way makes more sense to accomplish this goal?
- glow in the dark craft pumpkin from Michaels - scissors - glow in dark puffy paint. I got a variety pack of 6 of these tubes of Glow in the Dark paint at Michaels for about $6 (used an AcMoore 50% off coupon) - orange craft paint. I used whole bottle like this in the color "pure pumpkin". Fitting, right? - paint brush (or foam brush. It will have to fit in the cutouts you carve in the pumpkin) - hot knife or wood burning tool with hot knife tip. - pen