Update 7/20/2013: Looks like the above item has been discontinued, but I found a really another one on Amazon. It's just the hot plate base, but you can buy a ramekin or glass votive holder to warm your tarts on it.
Update 11/3/2014: I found this wall plug in 24 hour timer, just plug your tart warmer into it and set the timer to shut off when you want. Easy!
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