Does it really matter if it's your kids toys or your neighbors lawn? No. It's about what inspires you at the moment to capture it. Everything happens for a purpose and it doesn't matter why but that you embrace the moment and capture it. That is what will separate you as a photographer from someone who just snapshots whatever. I say go with it and then look at this - http://365project.org/discuss/articles/6821/the-decisive-moment-by-henri-cartier-bresson.
@dkg - I've done that too!
@meggageg I have a dino one similar to yours!