Wash blueberries and spread on a clean kitchen towel. Pat completely dry and air-dry 5 minutes. Any surface moisture will make the yogurt coating slide off.
Stir Greek yogurt, honey, and your chosen flavor add-in in a small bowl until smooth and thick. Keep the bowl chilled in the fridge until ready to dip.
Line a baking sheet with parchment paper. Confirm it fits flat in your freezer before you start dipping.
Pierce each blueberry with a toothpick and dip into the yogurt bowl. Let excess drip back into the bowl. Place each coated berry on the parchment. For bulk batches, use a spoon to coat 5-6 berries at once and a fork to transfer.
Slide the tray carefully into the freezer. Freeze for at least 2 hours 30 minutes until the coating is fully solid and not tacky. Silicone mold clusters need 3 to 4 hours.
Once frozen solid, transfer bites to an airtight freezer bag. Remove as much air as possible. Store up to 2 weeks. Serve straight from the freezer.