L.C.
Get all of the crafty stuff you have in your house to have a decorating contest for the pumpkins. You can even use jello powder mixed with a little water to make edible finger paint to paint them with.
Use the straws and cotton balls for a relayrace. Have two talbes set 20 to 30 feet apart with the cotton balls on each table. Two teams with half of each team at either each table (so 10 players on each team with 5 at one table and 5 at the other). Each player gets a straw. Hands befind their back, they have to suck the cotton ball onto the end of their straw and race it to the other table. When they get there another player from their team has to pick the cotton ball up with their straw and race it back to the other tavle, and on it goes until each player has raced with the cottong ball. If they drop the ball, they have to go back to the table they got it from, pick up another one and start over. The first team that succesfully gets their cotton ball back and forth with all the team members wins.