a graduated set of instuments starting with a short, thin, very pointy pin then the same, dipped in weak.acid then bigger pins, and stronger acids the get them

a graduated set of instuments starting with a short, thin, very pointy pin then the same, dipped in weak.acid then bigger pins, and stronger acids the get them hot etc,etc sort of a micro tortures starter kit, but all calibrated and then a big pile of money, to attract volunteirs there is already a group that has been doing this with insect stings and bites, with the worst bieng some kind of mega sized japanese hornet, which the description of was, as an awe inspiring combination of bieng stabed with something dipped in hot acid, so.....