Our recent call for submissions netted some excellent recommendations. And we're looking for more.

Specifically, can you recommend:

Best inflatable kayak (solo), under $500?
Best introductory, weekend welding gear?
Best air rifle for a boy?
Cheap hair analysis for heavy metals?
Anyone know if there is software that takes music input and outputs musical scores?
Need a starter set of most common nuts, bolts, screws. Any good deals?
Something better than gypsum sheet rock?
An economical home windmill?
Entry-level speaker system better than JBL Creature II?
Affordable, high-functioning walkie talkies?
Pocket garden tool/knife sharpener?
Best mechanical stud finder?
Magnetic paint?
Racquet stringing machine?
Best time accounting software/website?

Have you used/read and can you recommend the following, or something comparable that's superior?

Drill Doctor
Cobrahead gardening tool
Backyard Ballistics by William Gurstelle
Seed to Seed by Suzanne Ashworth?

We look forward to hearing from you.
-- es (elon {at} schoenholz dot com)