hire a ***y print model to dress in a spaghetti top and pose for a pic taking a seductive bite of a donut and getting powdered sugar on her luscious lips....
grabe...iisa talaga ang takbo ng utak ko hahaha :evillaugh
on a serious note, i agree with the people who said that the viewers must immediately know what you're selling. also, where is this poster going? i think it's great to call attention to something on a wall, but the colors would be too loud for a magazine or newspaper.
finally, with those colors being so bright, make sure it's printed on high quality paper with the best printers - oranges, reds and yellows look extremely tacky and cheap if printed on low quality materials.