The Guilty Pleasure: Marshmallow-filled, Ghostbusters-themed donuts. Where to Get It: Krispy Kreme, several locations around town. Price: About $1.20 each. What it Really Costs: Oh, sugar!

Nostalgia for the 1980s and 1990s is in full swing these days. The latest entry is the Ghostbusters franchise celebrating its 30th anniversary. Yes folks, you read that right, as of this year it's been three decades since Bill Murray and the gang first crossed the streams.

Naturally, along with this anniversary, there's a marketing blitz to both sell more copies of the movie, and sell things that weren't related to the movie until someone put a Ghostbusters logo or the Stay-Puft Marshmallow Man on it.