As mentioned over in the Trapped dust thread, member MntRunner provided a link for a site that offers USB plugs.
These plugs help in keeping dust from entering the open ports of the Adam.

So in this thread we will list those links to sites that sell covers for the open ports of the Adam.

USB port covers

Best Byte
Offers three types of USB Port Covers...
.      Type A                    Type B                   Type A Flush


Both Type A and Type A Flush can be used in the Adam. The flush one might be to hard to use though since it is flush, but member MntRunner says that he can take them out.
Best Byte allows you to buy as many as you want.

Amazon
Also offers USB Port Covers...
..      Type A                    Type B                 For Future Use


Amazon sells them in packets of 10.

ebay
You can also search on ebay for "USB port covers".

Mini-USB port covers
Best Byte
Mini-USB Port cover


HDMI port covers
Best Byte
HDMI port jack cover


topicovers
topicovers has port covers for headphone (audio), HMDI, microUSB, USB, etc Great overseas shipping.

I will add to the above list as I find them, if You find any feel free to add below or pm me to add this post.

TS out