laser cutter The Polygonia Design Suite, a web app for easily creating symmetrical, repeating patterns and designs Gareth Branwyn
happy mutants Geared coconut clomper makes your bike sound like a horsie from Monty Python and the Holy Grail Cory Doctorow
Gadgets Here are 39 of the best July 4th deals to help keep some money in your wallet Boing Boing's Shop
coronavirus Glowforge laser cutter owners made over one million "ear savers" for hospital mask wearers Mark Frauenfelder
Entertainment Giant 3D topographical wood map of Westeros ('Game of Thrones') made by a cartographer Xeni Jardin
math Weird and wild warped-grid jigsaw puzzles inspired by Mobius, Haeckel, and Picasso David Pescovitz