The Rexcelsior!

What there is most of

• Technic Pin with Friction Ridges Lengthwise and Center Slots · Black×70
• Tile Special 1 x 2 Grille with Bottom Groove · Dark Blue×35
• Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) · Dark Blue×31
• Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] · Dark Blue×30
• Plate 1 x 2 · Dark Blue×29
• Brick Sloped 30° 1 x 2 x 2/3 · Dark Blue×28
• Brick Sloped 45° 3 x 4 Double / 33° · Dark Blue×27
• Plate 1 x 4 · Dark Blue×26
• Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots · Blue×26
• Plate Round 1 x 1 with Open Stud · Dark Bluish Gray×25
• Brick Sloped 45° 2 x 4 · Dark Blue×23
• Panel 1 x 2 x 2 [Side Supports / Hollow Studs] · Blue×23
• Plate 1 x 2 · Blue×20
• Plate 1 x 2 · Trans-Neon Green×19
• Technic Pin 1/2 without Friction Ridges · Light Bluish Gray×18
• Brick 1 x 4 · Dark Blue×17
• Plate 1 x 1 · Dark Blue×17
• Plate Round 1 x 1 with Solid Stud · Pearl Titanium×17
• Plate 1 x 1 · Blue×16
• Technic Brick 4 x 6 with 2 x 4 Opening · Black×16

The twenty most numerous parts, longest bar first. Start a checklist to see all 370 part types and tick them off as you find them.