This trick gets 5 stars for the brilliant idea and a brand new principle I haven't seen elsewhere.
I'm sure there are going to be further applications for this discovery of Roddy. I'm knocking a star
off (it should only be a half star off- but that is not an option here)because as other reviewers
have mentioned, this is not a trick you can do impromptu in all situations without checking out the
glassware, lighting and angles. Though to be honest you have to be aware of angles and lighting with
lots of other effects too. The idea is really cute and one of a kind- just be aware of these small
limitations. Roddy is a super creative guy and the effect is well-taught. I will probably buy
anything with his name on it after "Little Door".