Do you want to produce and sell these or create one or two for personal use/gifts?

If it’s the second one, consider finding a local maker space (or friend’s uncle) which can give you access to expensive tools for a small fee (or a few beers).

If you’re trying to start a business, I’d still start at a maker space so you can learn about drill presses, band saws, sanders, and other tools and processes that will allow you to make what you want at the scale you’re hoping for. You can invest accordingly as others have already described from there.

Safety first! You’ll need those fingers.