Mail all answers to contests@gizmodo.com (one big email, not one email per question) with the subject line "Eureka Trivia". Contest ends July 10. Here are the questions:

1. Which invention's name dropped an H because Americans are foul-mouthed and mostly illiterate?

2. What was invented when a guy couldn't get to his delicious, delicious ice cream in time?

3. What popular product could you make legally in your bathtub, as the formula has never been patented?

4. Jamie Lee Curtis, famous movie star and children's novelist, is the inventor of what?

5. What Utah native and aspiring Disney parks employee is the reason millions never got laid in the '80s (and probably still don't today)?

6. Bonnie Tyler and Celine Dion owe Roberto Del Rosario a huge debt of thanks. Why?

7. Why are we thanking Ed Peterson for our weight problems and wrapper-strewn car floors?

8. Who was the original scissor sister?

9. Why does Gloria Steinem hate May 9th, 1958, more than any other date?

10. What item patented in 1999 allows children (and Richard Gere) to keep their gerbils and hamsters close to them at all times?

11. We have a lumberjack to thank for what, er, handy invention?

More details here.

Here's what you have to do to win: Create or design an original invention (emphasis on original - no recycled projects please) and send in a sketch, render, mockup, blueprint or some kind of image plus a description detailing your invention to contests@gizmodo.com with "Made in Eureka" as the subject.

The better it is, the better your chances are of winning.

Like last year, we'll vote on the winner, and whoever he or she is will get one free Apple iPhone. The normal Gawker contest rules still apply. Contest ends July 10, so get moving!

Sponsored by Eureka: "Eureka: A Sci Fi Channel Original Series

An All-New Season Premieres Tuesday July 10 at 9/8C"