Mecha-King Ghidorah (メカキングギドラ )

Made of PVC - 150mm Tall - Marked ©1994 Toho Co LTD Made in China ©1994 Trendmaster

Dengeki Sentai Changeman - 電撃戦隊チェンジマン - Keshi

Great Star League Gozma Space Beast Warriors Monsters of the Week - Gabuno-? (ガブノ)?

Made of Rubbery Plastic - 50mm High - Marked 'Made in H. K.'

Two Headed Dinosaur Kaiju

Made of Rubbery Plastic - 95mm Tall - Marked 'China'

Yellow Robot - Mecha Monster

Made of Soft Plastic - 65mm Tall - Depending on how you position it, it's marked '6' or '9'

Unknown Monster / Kaiju - 2

Made of PVC like Material - 80mm Tall - No markings - Arms are Articulated

Bootleg Godzilla Key Chain Figure

Made of Rubbery Plastic - 65mm Tall - No Markings

More Kaiju Bootlegs

This is another of the Bootleg Kaiju I wrote abot earlier.
This one was the model for the Bullette in Dungeons and Dragons.
Stiff Plastic - 55mm Long - Marked 'China'

Kaiju Bootlegs from Hong Kong

These are soft plastic that range in size from 40-60mm. Marked Hong Kong.
The one on the right is marked Hong Kong - the left China

The Rust Monster below is made of a more rubbery plastic though I think he was also made in soft plastic like the others.