Balloon powered car 8 years Other 2410 802 Penny ballista 8 years Other 1897 766 Duck 8 years Other 2168 795 Card shoe 8 years Other 1669 751 Bloxen, masonry 8 years Other 1959 722 Screwless heart gears 8 years Other 1830 763 Bag holder 8 years Other 1652 874 Cheesy door stop 8 years Other 2002 779 Difference engine v2.0 8 years Other 2096 840 Lego 8x1 gear rack 8 years Home 1737 742 Lego 16x1 gear rack 8 years Other 2349 762 Dice 8 years Other 2278 831
