My Luna Custom and a mini snowpony. Sure it's bigger than she is, but it's not like she couldn't reach that high. She can fly, or use her magic. Weight would be no problem seeing as she raises the entire moon...
Luna Custom seen here: [link]
I wish I could do more, but this is the only G4 toy I have. There was some photo-manipulation done here. I added a foggy border, snowflakes, and faded the background in hopes of hiding the houses back there. They shouldn't be noticeable unless you look for them.
It could be debated whether this should go in the Art or Customs category. I would say it's Art because it's a scene made with the custom rather than a direct feature of the custom seen in the description, but if it must go in customs, that's okay.
Also I submitted to EQD! Hope it gets in!