Melt the white chocolate according to package directions. Tint it teal or light blue using oil-based food coloring.
Spoon chocolate into each Oreo mold, filling about halfway. Place one Oreo into each cavity, then gently press it down. Tap the mold lightly to remove air bubbles. Cover with more chocolate until filled to the top and tap again.
Transfer to the fridge and let set for at least 30 minutes.
Melt about 1/4 bag of additional white chocolate. Divide and tint half yellow and half pink. Pour into the bunny mold and refrigerate for about 30 minutes, or until fully set.
Once everything is firm, carefully remove the chocolate Oreos and bunny shapes from the molds.
Using a small amount of melted white chocolate, attach one bunny to the top of each Oreo. Mix colors and shapes to keep each one a little different.
Let them set completely.
Place two cookies into each treat bag and tie with carrot ribbon for a bright, spring-ready finish.