Rules - The only rule is that your creation has to include some sort of pumpkin, gourd, squash or something of that ilk. If you want to incorporate 3D printed stuff, NFT's, coins, whatever, all the better! There will only be one entry per person (but this can include a bulk of items together (i.e. a 3 pumpkin set with a drawing next to it, for example).
You should probably require the image to include the user's name and date written on a piece of paper in order to prevent plagarism.