We would like to clarify that Prize Shovels and Certificates are not obtainable from the Activities tab. The posts for it are just an invitation to celebrate with the Farmer who received Certificates & Shovels from winning, which will give you 250 Coins upon clicking on the "Get Yours Too!" button.

Sorry for any confusion or inconvenience this may have caused you. We will make sure to improve our messaging in future updates.

Thank you for your patience and understanding.