Is it better to use acrylic or oil paint to paint over the gold leaf?

Do you have skills they would require? Are you a doctor, surgeon, blacksmith, mechanic? If you have useful skills like these and can handle yourself, then you are just as...

Yes, but it will work better with olive oil or vegetable oil.

No, it will make the paint to thick or maybe even clumpy. That is not recommended.

To do this without gold leaf, you can use gold paint, luster dust, glitter, and much more.

Yes, actually it can. If you are applying this to something like a sign or table, or even an object that is handled a bit more often, the procedure more...

Acrylic is easier to clean, but doesn't leave a smooth surface. Enamel is smoother, and will generally last longer, but is hard to clean up if you want to change...

Neem oil can cause eye end skin irritation. Rosemary oil is safe to consume.

No. If you put the mug in the dishwasher, there is a high probability the paint will come off.

You can use acrylic but you will not get the best results. The acrylic paint will harden the shirt and likely come off in the wash.

Yes. It should work just fine. Because it's a porous material, the paint should not rub or wash off.