I remember being so disappointed as a kid that the word "abracadabra" (or abbacadabra as Bugs pronounces it) didn't actually do anything. But I still love this cartoon. I was reminded of it tonight, and discovered that it is up on the web. So here is Bugs Bunny Transylvania 6-5000 (in two versions, since I have no idea which is the better player); fwiw, the top one loaded faster for me. Enjoy!
And from YouTube: