Similar to Erin I've gone with colours instead of an actual theme, mainly matching stuff in the room to the curtains which have pink, black, red & some other colours in them. (...& I WANT that lollie machine!!)

I still have to paint some canvasas for the walls & get some colourfull pins or badges for the mosquito net so that it's not all white, oh & get a red & yellow 'rocking snail' that DP has seen.

I think going with matching colours really leaves my options open when it comes to buying new things, and my my, how I love to buy new things...