It’s a 100% legal building technique as per the official LEGO rules, too. Official track pieces can be linked up by placing them on a 1-stud-high booster. [brick_on_the_tracks] argues that it ...
one of which held 4,756,940 pieces, much of it sea-themed. Since then, Lego parts have been found in south-west England, the Channel Islands, Wales, Ireland and as far away as the Netherlands and ...