A few more examples, and on the wiki would be helpful.

Starting on it. Just added the test scripts I've been using in Dev to the wiki.

List of Examples Suggested for Additions (Note some are not possible yet):

• I would like to make a spreading sand block in the style of grass where it desertified the grass and decays into normal sand. Similarly a spreading form of mossy bricks or cobble.
• I would like a magma variant which breaks into lava. (Similar to https://github.com/The-Acronym-Coders/ContentTweaker/wiki/Blocks-Opaque-onBreak-Test)
• I would like an ore which drops different things based on time it's broken.
• I would like a block which cures over time into a different block.
• I would like a block which emits a redstone signal when passed through.