Is there a certain type of paint I should use? Is it dishwasher safe?

Valspar is a very good paint brand. They also have sealers and majestic colors.

For indoor items made of rubber that will not get a lot of wear and tear, use acrylic craft paint. You may need to use two coats, and be sure...

Try to find a reliable brand that fits in your budget. You don't have to get an expensive brand, but be wary of cheap paints. Vet the brand you will...

You can use a paint comb or a wire brush to clean brushes. If you have a lot of paint caked up onto your brush, those can be very good...

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.

You can use any paint you want. I use acrylic craft paint and sometimes add metal looking highlights with markers, paints, and rubs (silver, gold, brass, copper, whatever you want)....

Any type of paint will harm the tree.