Oh! I just realised that I took these photos and then forgot to post them.
Earlier this week I wore Rimmel Ultraviolet for a day (previous post about it here) and then when the tips started to shrink a bit, I added some black (Rimmel Black Out) using hole reinforcement stickers. I put the stickers quite far up (down?) the nails so that the black was on more than just the tips really.
I liked this look, and several people at work complimented me.