Arduino uno and Breadboard Holder - RoboticX

ProtoStax Enclosure for Arduino

Pololu - Arduino Uno DIP Edition

Gridfinity Arduino Lab - 3D model by Trickyhicky on Thangs

Arduino Uno Rev3 — Arduino Online Shop

Arduino uno and Breadboard Holder - RoboticX

BreadboardBot

Arduino Uno/Mega/Nano Breadboard Holder (Remix)

Arduino Zero to Hero Kit - DFRobot

Arduino Base Plate + Bread Board Organizer UNO Form Factor Stop Wasting Time

Arduino uno + big breadboard holder by Jigsawnz - Thingiverse

Arduino & Breadboard Holder : 5 Steps (with Pictures) - Instructables

Arduino uno and Breadboard Holder - RoboticX

Project Holder for Arduino Uno Development Board w/ Breadboard - RobotShop