I can't determine if the supposedly kid friendly Crayon Crawler is a crawler or the browser, their site is down in flames at the moment, but anyone stupid enough to put the word CRAWLER in the user agent deserves to get dumped anyway.
Probably a browser, who cares:
188.8.131.52 "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0; Crayon Crawler)"Don't need any snotty faced zip-popping brats on my site anyway.
184.108.40.206 "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Crayon Crawler; FunWebProducts; .NET CLR 1.1.4322; MSN 9.0;MSN 9.1; MSNbQ002; MSNmen-us; MSNcOTH; MPLUS)"
220.127.116.11 "Mozilla/4.0 (compatible; MSIE 6.0; AOL 9.0; Windows NT 5.1; Crayon Crawler; SV1)"