Having been amused a while ago about someone saying "data" differently to me, I've recently come across two more different pronunciations. So, in total:

• "Dadda" to rhyme with ladder - Eris Stassi
• "Darder" to rhyme with harder - George Oates
• "Darter" to rhyme with garter - Benjamin Mitchell
• "Dayter" to rhyme with later - Simon Harriyott

Any others I should know about?