A jack-o'-lantern is typically a carved pumpkin. It is associated chiefly with the holiday Halloween, and was named after the phenomenon of strange light flickering over peat bogs, called ignis fatuus or jack-o'-lantern. In a jack-o'-lantern, typically the top is cut off, and the inside flesh then scooped out; an image, usually a monstrous face, is carved onto the outside surface, and the lid replaced. At night, a light is placed inside to illuminate the effect - Wikipedia.
I know we are far from Halloween, but after seeing several pictures of pumpkin art, with so many different characters and designs that I had to create a post with them.
chaoskomori
joh-wee
spikewolfwood
joh-wee
kamose
ceemdee
yoshi-warrior
joh-wee
vampirehimora
zohnii
myaen
joh-wee
kamose
revelation-six
punkbouncer
faerlyte
mediaklepto
ibethepirate
7anya
ego-sum-mihi
And the funniest: