I bought some cute water bottles at Dollar Tree and we decorated them with rhinestones. The girls did their initials, due to time, but I plan on making one like this. We used E6000 epoxy glue. I got the rhinestones at Hobby Lobby in a big tub of assorted colors for 40% off so the cost was minimal. I would recommend for older girls because of the glue.
Featuring a new flip-top design, the Star Trek "Enterprise" 24 oz. Stainless Steel Water Bottle is eco-friendly, non-toxic, reusable and recyclable. Oh, and it's also decorated with a geek-chic blueprint of the USS Enterprise.