Any suggestions for hollow dildos?

Hello, I would like to make a custom water bottle that uses a dildo as a drinking spout. However, most of the ejaculation dildos I can find are out of my price range and probably won’t work. Any suggestions or recommendations on hollow dildos, or how to safely make one? It won’t be used for sex or any internal activity other than drinking. And it will have a tube/straw running through it so it can be used at any angle. I tried to see if this already exists but found nothing. I’d be happy to explain in more detail if necessary.

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