2/1 - 2/15: Tinfoil Speed Challenge
2/1 - 3/29: Microcontroller Contest
2/1 - 3/29: Paper Contest
2/1 - 3/29: Automation Contest
2/1 - 3/1: Self-Care Challenge
1/18 - 2/15: One Pot Meals Challenge
1/18 - 2/1: Sew Warm Speed Challenge
1/4 - 1/18: Knitting and Crochet Speed Challenge
1/4 - 3/1: Make it Glow Contest
1/4 - 3/1: First Time Author Contest
1/4 - 2/1: Out of the Box Challenge
1/4 - 2/1: PCB Challenge
11/23 - 12/7: Holiday Decorations Speed Challenge
11/16 - 1/11: Block Code Contest
11/9 - 11/23: Cookies Speed Challenge
11/9 - 12/7: Plywood Challenge
10/26 - 11/9: Candy Speed Challenge
10/19 - 12/14: Plastic Contest
10/19 - 11/2: 1000th Contest
10/19 - 12/14: Battery Powered Contest
10/12 - 11/9: Paint Challenge
10/12 - 11/9: Hand Tools Only Challenge
10/12 - 10/26: Modify It Speed Challenge
9/28 - 10/12: Potato Speed Challenge
9/14 - 9/28: Mason Jar Speed Challenge
9/14 - 10/12: Pumpkin Challenge
9/14 - 11/9: Halloween Contest
9/14 - 10/12: Bikes Challenge
9/14 - 11/9: Remix Contest
8/31 - 9/14: Recycled Speed Challenge
8/17 - 10/12: Make it Move Contest 2020
8/17 - 9/14: Sandwich Challenge 2020
8/17 - 8/31: Glass Speed Challenge
8/17 - 9/14: Stone, Concrete, Cement Challenge
8/17 - 10/12: Build a Tool Contest
8/10 - 10/5: Back to Basics Contest
8/3 - 8/17: Puzzles Speed Challenge
7/20 - 9/14: "Can't Touch This" Family Contest
7/20 - 9/14: CNC Contest 2020
7/20 - 8/17: Secret Compartment Challenge
7/20 - 9/14: Robots Contest
7/20 - 8/17: Lighting Challenge
7/20 - 8/3: Make It Fly Speed Challenge
7/6 - 7/20: Frozen Treats Speed Challenge
6/29 - 7/13: Exercise Speed Challenge
6/29 - 7/13: Pocket-Sized Speed Challenge
6/22 - 7/6: Super-Size Speed Challenge
6/22 - 7/20: Audio Challenge 2020
6/22 - 8/17: Colors of the Rainbow Contest
6/22 - 8/17: Metalworking Contest
6/22 - 7/20: Maps Challenge
6/15 - 6/29: Glue & Tape Speed Challenge
6/15 - 6/29: Outdoor Cooking Speed Challenge
6/8 - 6/22: Pets Speed Challenge
6/1 - 6/15: One Pot Meals Speed Challenge
6/1 - 6/15: Sew Fast Speed Challenge
5/25 - 7/20: Fandom Contest
5/25 - 6/22: Toys and Games Challenge
5/25 - 6/22: Jewelry Challenge
5/25 - 7/20: Backyard Contest
5/25 - 6/8: Silly Hats Speed Challenge
5/18 - 6/1: Dessert Speed Challenge
5/18 - 6/1: Finish It Already Speed Challenge
5/11 - 5/25: Pizza Speed Challenge 2020
5/4 - 5/18: Copycat Recipe Speed Challenge
5/4 - 5/18: Declutter Speed Challenge
4/27 - 6/22: Arduino Contest 2020
4/27 - 6/22: First Time Author Contest
4/27 - 5/25: Leather Challenge
4/27 - 5/25: Space Challenge
4/27 - 5/11: Scraps Speed Challenge
4/20 - 5/4: Yarn Speed Challenge
4/20 - 5/4: Kitchen Compromises Speed Challenge
4/20 - 5/4: Work From Home Speed Challenge
4/13 - 4/27: Epoxy Speed Challenge
4/6 - 8/10: Tinkercad Student Design Contest
4/6 - 4/20: Baking Speed Challenge
4/6 - 4/20: Cardboard Speed Challenge
4/6 - 6/29: Distance Learning with Tinkercad Contest
3/30 - 4/27: Indoor Plants Challenge
3/30 - 4/13: LED Strip Speed Challenge
3/30 - 4/27: Sculpting Challenge
3/30 - 5/25: 3D Printed Contest
3/30 - 5/25: Motor Vehicle Contest
3/16 - 3/30: Tiny Speed Challenge
3/2 - 3/30: Spring Cleaning Challenge
3/2 - 4/27: Clocks Contest
3/2 - 3/30: PCB Design Challenge
3/2 - 3/16: Rubber Band Speed Challenge
3/2 - 4/27: Woodworking Contest
2/10 - 3/9: After School Challenge
2/10 - 3/9: Meat Free Meal Challenge
2/10 - 4/6: Heart Contest
2/10 - 4/6: Fiber Arts Contest
2/10 - 4/6: Paper Contest
2/10 - 4/6: Trash to Treasure Contest
2/10 - 2/24: Rope & String Speed Challenge
1/13 - 2/10: Magnets Challenge