Pizza Image: http://school.discoveryeducation.com/clipart/clip/pizza2.html

Candy Image:

 http://www.alibaba.com/product-free/100755950/Brand_Name_Candy_Soda_And_Energy.html

Thinking Cap Image:  http://school.discoveryeducation.com/clipart/clip/thinkingcapwhoa.html

Ice cream Image:  http://www.squidoo.com/milking

Chocolate Cake Image:  http://www.clipartguy.com/details/illustration/91_man_eying_a_chocolate_cake.html