Radioshack used to sell a $10 plastic microscope that people hacked webcams onto.  What happened to that? Here&#x27;s a link to an old tutorial.<p><a href="http:&#x2F;&#x2F;www.instructables.com&#x2F;id&#x2F;30-minute-USB-microscope&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.instructables.com&#x2F;id&#x2F;30-minute-USB-microscope&#x2F;</a>