To make this activity dough you will need
one 15oz can of pumpkin
one box of corn starch (corn flour in the UK)
Place all the pumpkin in a bowl then add about 1/3 box of corn starch at a time and mix. We used all the cornstarch but a very little, we placed the little bit left on the table. Only cause that is what my daughter wanted to do. The dough was not sticky once mixed.
You could also add pumpkin spice but it is really not needed.
side note~(The snake thing in the back is my sons Halloween costume. ;) We had to make it home made this year cause he just HAD to be a snake.
Soon after we started playing my son came over and like normal wanted to add the dough to water. He is experimenting and learning so why not. I gave him a bowl with a little bit of water and he went to work mixing the dough in a little bit at a time. After mixing all the dough in it really didn't change much. It became more of a free flowing dough but was not really messy.