“a game where every tower I plant tips the whole world a little — the marbles roll downhill into someone else's territory”

“a desk hoop for my kid — flick it, score, and the ball rolls back on its own”

“a submarine on its own stand, for the shelf above my desk”

“an F1 car big enough to roll along the shelf, with wings I can pull off and swap for another colour”

“a Ferris wheel where the little cars stay upright the whole way round”

“a full double-six set of dominoes in its tray, lid slid on, nothing rattling loose”

“a desk calendar I roll over by hand each morning, with a trough for my pens”

“a rubber-band biplane small enough to live in a coat pocket”

“a bowling lane I flick a disc down, six pins at the far end, and the whole thing packs into itself”