The LOK DeSparkilizer.
This is a Max utility designed to help fix problems with tiles, namely the sparklies or seams that result when your tiles aren't exactly on a centimeter line. A readme is included in the zip to help with installation, usage and what it does. Its pretty simple in use. Select your model base, click DeSparkle and every vertex of every object linked to the model base will be adjusted if it needs to be to sit on an exact center. I can attest that it helped at least a couple of my tiles that had a lot of hand moving of vertices get rid of sparkles. If you're not sure what the above means you can still use it for your tiles. It'll just be more mysterious that way. :)
PROJECT NOTE: Migrate scrape returned 0k file for lokdesparkle.zip.
IF SOMEONE HAS THIS, PLEASE NOTIFIY - Fester Pot
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The original file is still unaccounted for, but the CC community has said a DeSparkle feature can be found in VelTools. Link below.