My main costume entry for this year's Gallifrey One Masquerade contest. Seeing as how I'm sort of stuck cosplaying the Tenth Doctor (dressing as another character makes me look like David Tennant dressed in their clothes) I decided to try adding a monster/creature from the episode "Unicorn and the Wasp."
While it looks like an ordinary wasp of gigantic proportions, the being is known as a Vespiform and can change it shape to a human form at will. Large as it is, my constructed version of this alien was still only about half the size that it appears in it's episode of Doctor Who.
My choice of scale was based on the fact that I would have transport this huge cosplay prop in my airplane luggage, disassembled, and then reassemble it in my hotel room in Los Angeles. The body breaks down into three pieces- the head, furry midsection, and lower thorax. The thorax length was the largest size my biggest suitcase could carry, hence the base form scale.
It was constructed much like my Avatar puppets using carpet foam patterned off the shapes I was able to draw off the Vespiform action figure from Character Options. The arms and antennae used a bendable wire wrapped in soft foam as their base which allowed them to be posed in multiple positions. The wings were constructed using techniques gleaned from other cosplayers who've made fairy wings and were constructed out of wire, cellophane, and vinyl. The whole thing was bolted into a PVC pipe skeleton which exited by body and then attached to my belt to ride on my waist. Thankfully, it was remarkably light-weight, which is what I was hoping for.Photos by Scott Sebring - Gallfrey One Con 2010