Yeah, there is a cheap universal adapter with the tip that fits in the Kyros as one of the options, it's like 7 bucks at big lots, also got a car charger for 4$ there. As long as you can find a universal adapter that has the right tip, puts out 5v and the right ma rating, you can use it.
What size is the tip? I have a solar charger that has a usb output and would like to try to find an adapter for the tip. I believe I have 3.5 female wire that fits my solar charger so I would need whatever a 3.5 male to ?? mail adapter. Thanks