This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
In theory, I believe most phones support Unicode, so you might just need to ensure you're using a font that has characters for the letters you're wanting to use, ensure the device supports Unicode, and then construct it manually.
This article has an example of a test you could easily run to make sure that you can do it.
Theodore Jonathan Casser
SCJP/SCSNI/SCBCD/SCWCD/SCDJWS/SCMAD/SCEA/MCTS/MCPD... and so many more letters than you can shake a stick at!