>>6090069As a diy project the only material available are urethan resin.
If you want to make action figure with durable materials it's an other level. It's melted platic in metal molds. It must be professionnaly made, the price is high.
There are companies that help you in your project. You send them your model and they re sculpt it and else.
If you have 10 grands to spare you better try that way.
Otherwise you need sculpting clay,silicone, resin, compressor, pressure pot. For around 500-1000$ you are ready to go.
It's not difficult, depends on how your skills are.
Tell us more anon,