TAGGED
Magic trick
2 designs tagged “Magic trick”.
Board games / Dice
Crooked Dice — a fair die, a gaff die and a loaded die that look identical
Three 16 mm d6 from one source: an honest die, a duplicate-face gaff showing only 5 and 6, and a die with a sealed void under the 6. Same body, same size, same weight to within a tenth of a gram. Ships the float-test cup that catches the loaded one, and states how crooked each die is as a measured number instead of an adjective — centre-of-mass offset and tipping-barrier ratio for all six faces. A magic and party prop, sold with its own counter-measure.
Toys & mechanisms / Mechanical
Wand Through the Wall — a Straight Wand Passes Through a Curved Slit
A dead-straight wand on a little turntable swings clean through two CURVED slits in a wall, twice per turn, without bending. The wand is skew to the axis, so it sweeps a hyperboloid; the wall cuts that in a hyperbola, and that is the slit. Four flat supportless parts, formula engraved on the base.