This remake cuts a large hole in the bottom one of fabricke's pumpkins to fit one of those fake flame lamps that you can get on Amazon. The top is also cut open for air flow, and to allow the flame to just reach out of the top. The effect is quite dramatic, it really does look like a roaring fire inside the jack-o-lantern. I tried to post a video, which really shows how cool this is, but apparently Thingiverse does not support videos.

I also cut the pumpkin in half to allow all the teeth to print from the "gums" up, for better, sharper teeth. This also reduces the support material needed. The two pieces stack together nicely, you dont really need to glue them.

Open the file in millimeters, and the scale should already be set to tightly fit the top of the flame lamp (pumpkin is about 6.5 inches across), You do need to rotate the two halves so that the teeth are all facing up (I couldn't figure out how to rotate this in Fusion). Supports are needed. You definitely want to print this in yellow, the lamp is bright red, and the whole pumpkin will glow an eerie red in the dark.