That's one of the best close-up illusions I've seen in a while. The effect is very clean, the illusion is both amazing and poetic, and the teaching is very clear.
It takes some practice, but that's part of the fun, as it is very pleasant to go through the different moves.
I can't wait to show it in front of an audience and to find a presentation that will do it justice.
That's a gem guys !

Excellent illusion. It is a wonderful way to borrow a bill and return it transformed!

This is a great illusion and just a lot of fun. I showed this to my young daughter and it is by far her favorite illusion. This illusion can also be used in conjunction with any number of routines that require switching a bill. For example, you can switch a bill as part of a mentalism routine. I use it along with the Horwitz add a number pad to convert participant random numbers, including a switched bill into a meaningful number such as a telephone number.

I absolutely love this effect. Once again Andrew Mayne has provided a great looking effect that can be done cheaply. You're getting a seemingly impromptu manipulation effect that looks great, plays strong, and fits in you're pocket. To me it feels like a poor man's version of dove manipulation. And to make things better you don't have to feed them! Andrew covers in detail how to make the butterflies, how to do the initial change, how to produce a swarm of butterflies, and some additional presentation ideas. Some of the moves will probably take you a bit of practice to get down, but when you do you'll have a real gym at you're disposal. This is a real eye-catcher whether it's done on the the street, as an opener on stage, or as a finale to you're show. This effect already has a place in my show. $15 dollars may seem a little much for a single effect download, but if this looks like something you'd like to learn I completely recommend it. You're getting a great effect that you can begin learning instantly with nothing more than what's already in your wallet!

I downloaded this and when I've had the time have started learning The Butterfly Effect. Living in UK, we have different notes but it still works ok with a Twenty pound note. I prefer to do it with dollars though as the Butterfly looks a bit better. Nice to perform to music.Something a little bit different...I like it.

If you like the demo you'll like the trick! It's a pretty simple concept (and it's not difficult slight of hand) but the effect is very pleasant to the eye. I'm very satisfied! Like I said: if you like the demo, you will be pleased with the trick.

nice, but little thought on your right hand and how to dump the folded bill and retrieve the butterfly pack. I suggest placing your hand on your chest as you bring the butterfly in front. A special pocket for the bill and retrieve the pack from your left lapel. This keeps your hands closer and your movments hidden. This is not an easy trick and requires alot of daily practice to make smooth.

Very classy performance and presentation. Very do-able and worthy of the effort.

This is a fantastic effect and Andrew's teaching of it is phenomenal. I have no doubt in my mind this is going to become a staple of my act and something I use EVERY DAY. Bravo for sharing such a great idea! However, if it were me I'd have kept it to myself ;-)

evokes mysterious link of magic and nature!