Summary

This is a fish adapter for use with the GoPro mounting system. I guess you could attach other things to this platform besides fish, but I used a fish.

Other parts in the photos:
GoPro J Mount by jd3shaw
https://www.thingiverse.com/thing:1010861
Modular Mounting System by yyh1002
https://www.thingiverse.com/thing:2194278

UPDATE 5/27/18:
Unfortunately, the PLA warped from heat in the parked car and the fish got away. :-(

Print Settings

Printer:

JG Aurora A3

                                            <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>Yes</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>0.1-0.2</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>20%</p></div></p>                                                        <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>Shown in Hatchbox Black PLA.  Print on it's side with support for strength.</p></div>

Go Fish