A few days ago I've heard about Crazy Mansion, another project with a crowdfunding campaign. It's very heavily inspired by both Maniac Mansion and Day of the Tentacle, but it doesn't use any copyrighted things from those games. Instead, it's a completely different story set in the same universe. It's created by Desperate Studios team, who created their first games in the days of C64 and Amiga. You may check this out for details:
http://crazy-mansion.heimat.eu/
http://www.indiegogo.com/CrazyMansion
The GUI design:
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