Place chocolate in a glass heat-proof bowl and microwave on medium high for 1 minute and then stir well. You may need to heat in further 10 second bursts to entirely melt.
Add the coconut to the bowl and stir.
Pour in the rice bubbles.
Stir to coat with chocolate and fill patty pans or cupcake cups with mixture, sprinkle with coconut and refrigerate for 10 minutes to set.