The economy's in a downward spiral, unemployment's at an all-time high, and don't even get me started on the sub-prime mortgage crisis. One thing all this doom and gloom can't stop: true love. When you find "the one" do you consult Jim Cramer on CNBC? No. All logic and practical thinking goes out the window and you're going to propose. 401K returns be damned, you're asking the love of your to marry you. What you need are a few recession proof marriage proposal ideas. Oh, and the engagement ring.