Mouse

What there is most of

• Brick 1 x 2 · White×3
• Brick Sloped 45° 2 x 1 with Bottom Pin · Light Gray×2
• Brick Sloped 33° 3 x 2 with Eyes, Nose and Whiskers Print · White×1
• Brick Sloped 45° 2 x 2 · White×1
• Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] · White×1
• Plate 2 x 3 · Light Gray×1

The twenty most numerous parts, longest bar first. Start a checklist to see all 6 part types and tick them off as you find them.