Payd. Logo

So after trying all night to design a P + ✓ as set by @Jeroen van Eerden I finally came to an design I was happy with...

I spent all night trying to force the tick into negative space. But it wasn't working, I couldn't make it look like a tick. Eventually I tried the design from a different angle and instead of making the tick fit around the P, i made the P's hole the tick. I then increased the gap size between the circles. Im relatively happy with this. I know its not the greatest work, but its the best I could do :)