flat cardboard

Crayola 240-Sheet Construction Paper 12-Color, School Supplies for Kids, Craft Paper, 9x12 Inches, Multicolor, Uncoated, Classroom Essentials

8.5"x11" 72-Sheet Cardstock 18 Colors - Astrodesigns: Multicolor Scrapbooking & Craft Paper, Matte Finish, 65 lb

8.5" x 11" 50-Sheet Primary Cardstock 65 lb - Astrobrights: Multicolor Matte Craft & Scrapbooking Paper, Unbound

750 Sheets Letter Printer Paper White - up&up™: 8.5x11 Inch, 20 lb, 92 Brightness, Stationery, Office Supplies

10ct Kraft Floral Blank Note Cards with Envelopes – Spritz™

Astrodesigns 12" x 12" 72-Sheet Creative Collection Specialty Cardstock Starter Kit 65 lb 18 Colors: Colored Cardstock, Scrapbook

Scotch 65ct 9" x 11" Thermal Laminating Pouches Clear: Laminator Supplies, 8.9" x 11.4", 1.88 lbs, 65 Pack

500ct 100% Recycled Letter Printer Paper White - up&up™: 8.5x11 Inches, 20 lb, 92 Brightness, Recyclable Printing

Scotch 5.5"x9"Curbside Recyclable Mailer Size 0 Brown: Self-Adhesive Padded Shipping Envelopes, Single Pack

Scotch Cushion Lock Protective Wrap 30ft

Astrodesigns 8pk 8.5"x11" Sticker Printer Paper