Arduino Expansion Shield for Raspberry Pi model B - DFRobot
Dfrobot Expansion Shield For Raspberry Pi B+ / Pi 2 /pi 3, Atmega32u4 Leonardo 5v Compatible With Arduino Standard Shield Sensor - Demo Board - AliExpress
Dfrobot Arduino To Raspberry Pi Mcu Shield Dfr0327,designed To Combine Your Raspberry Pi Computer Board With An Arduino Board - Demo Board Accessories - AliExpress
Use the Arduino MKR ENV Shield on a Raspberry Pi - Hackster.io