[Melodica-Me]

Hello Mauricio, this is the one I use. For the Pro-36 when using the stand remove the mouth piece and place it up side down so the mouth piece opening is at the bottom and place a small towel underneath.
Here is the web-site where you can get one.

If you are going to need more than one, I wouls advise you to buy as many as you need at one time, it took a little time to get them.

http://global.rakuten.com/en/store/westmusic/item/10007573/

Melodica-Me