Look into coin magic and make your own version of it based off that.
Whilst this forum does not condone exposure, I can advise you that you will not find the method in any book. The reason being that there is no sleight used, it instead a piece of magical apparatus. As for the name of the creator/name of the apparatus, I feel it's a question better answered by a moderator who is better versed in the lines between spoonfeeding, exposure and advice.
Good luck with your search,
JS.
lol i just imagined thumb palming a fly...
lol i just imagined thumb palming a fly...