[When nothing much happens, Sypha releases the swirl of wind she'd held in her other palm, ready to sweep any shards of crystal away from the onlookers. She'd been pretty sure Thorne wouldn't put any truly dangerous or powerful objects out for the masses to fondle, but not so sure that she'd taken zero precautions.]

Exactly! If it were anything more than a lump of glass with a glow charm slapped on, it should have reacted. Lightning and magic behave very similarly when it comes to passing through conductive material. Magically generated lightning even more so! I'm fairly certain that - [An aggressive jerk of her pointy chin towards the booth] - is just a prop.