Shox Skinz makes these covers with flames for your XCEL 600 Modified.  Just $29.95 you can pick out the color of your cover and the flames.
 
These shock covers come in a set of 2 covers. They feature a velcro closure system and plastic ribs to keep them from pinching in the coil springs. They can be easily washed in soap and water.. |click here|  to get a quote on a custom set of XCEL 600 Modified shock covers.
 
These shock covers come in sets of 2.