There is one way to volunteer your fairly new skills when they're official: Skywatch. I've read some interesting and diverse opinions about it, so suggest you look into it independently, but one thing it doesn't require per se is a squillion hours or a CPL. It does rather favour those with their own machine (or part of one), though, being practical, so you're back to the unavoidable expense of flying, however you progress beyond the PPL or NPPL.
I'd thoroughly endorse the suggestion to join the PFA and fly something appropriately certificated (not that I have any bias....
).
Have fun!