Square shape pumpkin is made with square watermelon mold . see the below few steps of shaping process .
Get the square watermelon mold from www.slingfisher.com
or other seller , place the baby pumpkin inside of the mold when it is slightly smaller than the mold ,then patiently wait for it's growing inside.
after about half month growing and shaping inside , you can pick up the pumpkin ,then get the mold off the pumpkin , it might be need some skill to remove the mold ,but not that hard .
See the below fully shaped pumpkin ,also it is a very small green pumpkin ,since we use a very small mold .
There are few more need to care about to make the perfect shape pumpkin , please contact www.fruitmold.com
for more info .