I went to the Home Depot closest to my house this afternoon to see if any of their Halloween decorations could be useful for customizers.
The 7' long dragon is beautiful but way too big, it would be "Godzilla"-scaled to 1/18 figures.
The smaller 19" long dragons (3 different, all the same sculpt but different decos) are just about perfect despite the lack of articulation. I plan on getting one when I have some fun money.
There were some skeletal animals/dinosaurs/spiders as well that would range from colossal to Kaiju scale compared to 1/18 figures. The spider, which looks like a scaled up version of the Walmart spider from 2 years back, was probably the best one. The spider's legs were not fully unfolded so it would actually have a larger footprint than how it was on display.