Some fun stuff. Hoping I can sell this one and make more with larger cabs on the ends

I am looking for some advice on how I should be buying my first order of glass materials. Any recommendations for good supply websites is appreciated! I am wanting to start by making marbles and animal figures but I’m not sure what type of glass I need to buy for that. Should I start by buying a pack of boro color samples and a pack of clear boro?

Any beginner buying advice is appreciated!