I feel like I've seen this on another blog before, so I'm not claiming this idea is original to myself. The idea of stamping with a UV changing polish over a base polish of similar color.
I used Ruby Wing Crowd Surf over Color Club Power Play, these are exact dupes indoors.
Indoors this combination looks like just a simple solid color manicure.
Once outdoors and in the sunlight, the design comes to life! I stamped with a zebra pattern (and first it wasn't opaque enough of a stamp to show on it's own, so I later freehanded over it to "darken" the stripes.) Once the design is stamped or freehanded, make sure you use a topcoat so it smooths the lines nicely.
I think this is a really cool idea for the summer time!
I tried this same concept again with Color Club Get Your Lem-on and Ruby Wing Electric Firefly. I used the skull and crossbones stencil from this set available for $3.89 on Born Pretty.
The stencil didn't pull off perfectly cleanly, you can see little flecks of red stuck on my nail. My index nail didn't take the pattern very well at all and it really blobbed up and garbled the design.
I also added a thin freehand line of Electric Firefly for a french tip.
*The stencil was provided for review by Born Pretty*