Fabulous G10:
Equip the rainbow trail and the pink eye.
You must have the Pink Panic eye and the Rainbow Trail Gear equipped to get this achievement. Costs:
* Pink Panic - 6,000 coins
* Rainbow - 30,000 coins
Sometimes these items will be on sale in the item shop for less. Items that are for sale appear to be random. However, if you have a certain color egg, it is likely that the hammer needed to crack it will show up in the store. I continued to buy these to free up an extra slot for the rainbow to appear after I had saved up enough coins. It should eventually appear while playing but if you want to hurry it up you can continue to die quickly to be taken back to the shop for new items to appear.