Now that Halloween is over and you want to preserve the feeling a while longer, here are a few things you can do.
Use some WD40. The main ingredient in WD-40 is mineral oil—the
same stuff in Vaseline It will keep your pumpkins hydrated,
protected from moisture, and fresh looking. It also contains
several alkanes that are water-repellant and freeze-resistant.
So go forth and use it to preserve both carved and uncarved
Spray all over your
uncarved pumpkin to keep it looking shiny and new. For carved
pumpkins, spray inside and outside making sure every part is
saturated. Keep in mind that mineral oil is flammable, so you
may want to be cautious about putting a lit candle inside
Another idea. Get three pumpkins of varying sizes, small,
medium, and large. Paint them white. Then stack them up like a
snowman. add a hat, scarf or other typical snowman clothes. The
paint will help preserve the pumpkins and you can enjoy them for
months as wintry guests on the front porch.