In advance: Cut, bake and cool one tail cookie using pattern and one heart cookie using second smallest cutter. Cover heart cookie with poured cookie icing; let set. Attach tail to lollipop sticks with melted candy.
Ice 2-layer heart cake (3 in. high) with spatula. Pipe tip 1M rosette bottom border; add Sprinkle Sparks and position heart icing decorations.
Trim ears and hands off mini bear cake. Build up cheeks, forehead, nose and feet areas with tip 6. Cover cake with tip 14 stars. Pipe tip 3 dot eyes, tip 2 pupils and nose. Attach heart cookie with dots of icing. Pipe tip 14 zigzag arms and ears; overpipe with tip 14 stars. Position squirrel cake on heart cake. Insert cookie tail; cover tail with tip 13 pull-out stars. Add tip 2 message.