Jaguar Mascot Design Needed

We are a private school in Houston called The Emery/Weiner School. We are in need of a logo for our athletics department, as we are the "Jaguars" but do not have an official jaguar logo to display for banners, football helmets, and more.

Desired Color Scheme:
PMS 288 and White are school colors

Accepted File Formats:
Vector Formats (.eps, .pdf or .ai); Layered Formats (.psd or .tiff)

We are open to all sorts of ideas, but ideally the design would have the following characteristics:

1. Easily recognizable as a jaguar
2. Closeup of a jaguar head would be great but is not required
3. One color for the actual jaguar so it could be reproduced on t-shirts in one print color (e.g. all blue)
4. Final file must be in vector format and a large enough size that would make it print quality

Other information: our school colors are navy blue (spot color PMS 288) and white.  We go by The Emery/Weiner School, EWS, and Emery/Weiner. 

Thanks for helping us with this!  We are very excited and look forward to seeing all your creativity put to work.