Our yellow lab is crazy and has separation anxiety issues, so we have to crate him when we're out. Fitting a large dog crate into the living room wasn't working, so I cut some MDF down to not much larger than the crate, used 2" strips of it to build a box under the sheet, laquered it all up and dropped it on top of the crate. Instant end table by the couch!
I'm also quite proud of my front yard container garden that I made out of 42 used 5 gallon buckets.