Roo cup Decoration idea wanted

[Diz4]

I need some inspiration and ideas for decorating "Roo cups" We have a family of Roo cup drinkers and want to decorate them "Disney style" I knew I needed to come to the Disney Creative Brain Trust for ideas.

If you don't know what a Roo cup is.... It's a refillable cup that you can use all summer (but they all look alike)
http://www.ebay.com/itm/ROO-CUP-REFILLABLE-2012-BRAND-NEW-SEALED-25c-REFILL-ALL-SUMMER-SELL-OUT-/180894533212[/IMG]

I want ours to look Mickey and Minnie-ish. Any ideas? We'll have to use sharpies to decorate them. I'd love some suggestions!!

Thank you!!
Diz4