LetterCult is a website which "HIGHLIGHT[s] ARTISTS & designers doing remarkable work with Custom Letters. This group includes type designers, letterers, sign painters, graffiti artists, stone carvers, calligraphers, poster artists, and graphic designers. Just people. Who make letters." [from the LetterCult 'About' page]
Right now a playful battle of creative wits is going on: Alphbattle they call it. Every couple of weeks they are posting submissions of a new letter of the alphabet created by readers and contributors. As of 7 June they were up to H. Here are a few samples (all images from the LetterCult site):