This is my take on the Adafruit MASLOW open wifi finder. I used the CC3000 board with the built-in ceramic antenna to simplify assembly. This required some editing to the STL file. I did that with Tinkercad by superimposing a solid square over the SMA antenna mounting hole.
I used a blue LED with a 3.4v forward voltage drop and left off the resistor. This was built with a 105mAh Lithium Polymer to keep it simple and tidy. Loctite SuperGlue Gel Control really secured both the pocket clip and diffuser nicely, while a couple of dabs of Loctite Vinyl and Plastic clear, flexible adhesive hold the cover on.
The code worked just fine, and the Pro Trinket is really fun to upload to, as the bootloader starts 'automagically' when you upload (NICE!).
The finder is fairly sensative, and located a simple wifi server I set up using a Feather ESP8266 and no password. Yes, I know the Feather ESP8266 does most of what this gadget does, but it was fun to build and the printed case looks cool.
On that note, it's worth mentioning that the printing was not all smooth sailing. I tried unsuccessfully to get this printed by two separate makers using an online 3D printing marketplace. Finally ended up getting it done by one of the larger commercial printers for a very reasonable price and PERFECT results!