The Washing Machine is one of my oldest tricks, but it's still one of my favorites. I get a lot of requests for this one, however very few yo-yoers actually know how it's done.
The trick itself can look very intimidating but trust me, it's totally doable by any intermediate player.
The trick; a yo-yo starts attached to the string (like most yo-yos are) but is removed from the string and popped into the air before being re-attached... All while the yo-yo is still spinning.
I have attached a video demonstrating the trick, check it out.
The yo-yo; Any yo-yo can be used for this trick as long as it can sleep (spin at the end of the string). I've even used a Duncan Butterfly. As with any trick, the longer the yo-yo can sleep, the easier the trick becomes. So I suggest using any decent ball-bearing yo-yo. Using a butterfly shaped yo-yo would also totally be recommended.
It's a bit tricky for me to describe some of the moves in text, especially when a step requires you to switch planes (such as required popping the yo-yo off the string, or using your thumb to put it back in the loop). So if you have difficulty on a step (or a suggestion for a description change) please let me know.
For more yo-yo info and videos you can check out www.DoctorPopular.com. Thanks Phil and Shan for helping out with the pics.
Step 1: Unwind the string
When the string is unwound enough you should be able to open it up with your fingers. The wider the loop, the easier it will be to do the trick. Usually about 20 spins will do the trick.
When it's ready, wind up the yo-yo like you would any other yo-yo.