I thought about it, and here's my opinion:
1. Read this chart here
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%20on%20Arrival/VOA.pdf
2. If you are from a country in the purple "Passport holders of the following countries/ territories may enter Thailand without a visa", EXCEPT ISRAEL, you can get a new 30 day stamp by crossing over to Malaysia.
3. If you are from a country in the "Passport holders of the following countries/ territories may enter Thailand without a visa" BUT not from Indonesian, South African & Russian, you can border bounce at Myanmar via Kanchanburi
4. If you are from a country in the "Passport holders of the following countries/ territories may enter Thailand without a visa" BUT NOT FROM Brazil, Peru, Argentina, Chile and South Korea, then you can cross over through Cambodia.
5. If you are from a Visa On Arrival Country, you have to fly out and then fly back in to get a new visa.
6. If your country is not listed, then you need to buy a new visa, a completely different topic.