Roberta Simpkins
WonderHowTo
Gadget Hacks
Next Reality
Null Byte
Gadget Hacks
Next Reality
Food Hacks
Null Byte
The Secret Yumiverse
MacGyverisms
Invisiverse
Mind Hacks
Mad Science
Lock Picking
Driverless
About Roberta Simpkins
Location: Lake Havasu City, Arizona
Sites
Drawing & Illustration
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