Silicone Mermaid Tails!
The tails can be purchased here for a mere $1,300.
As awesome as they look, I do see some complications
1. difficulty getting into said tail
2. difficulty getting out of said tail
3. difficulty riding comfortably on the rides
4. unable to walking through the park
5. getting kicked out for swimming in the "Finding Nemo Submarine Bay
Although, that would make us perfect candidates for this job.