I wish I could've done that in an LD I had recently.

I was in the house out in the country where I grew up. I realized I was dreaming (that house is a dreamsign of mine) so I decided to go explore it. I walked into the house to see everything exactly how it looked when I lived there as a child. I went upstairs to my bedroom and went over to my dresser. Sitting on it was a music-box mirror that played "Somewhere Over the Rainbow" as a little white dove danced and spun over the mirror's surface. I thought to myself - "wow! I haven't seen this thing in ages! I forgot all about it!" I wished I still had it in real life.

I woke up, sad that I don't still have it. That would've been what I picked to bring back out of a dream.