Staples offers Crayola Crayons, 24/Box for $0.50 (reg $1.70) with free shipping.

Product Description:
Colors include black, blue, brown, green, orange, red, violet, yellow, blue-green, blue-violet, carnation pink, red-orange, red-violet, white, yellow-green and yellow-orange.

• Brilliant colors and smooth color laydown
• Reformulated colors provide more intense hues and truer colors
• Easy blending without smudging
• Resistance to bending and breaking
• Set of 24 vibrant, educator-preferred colors
• Convenient, reusable tuck box
• Regular size - 3 5/8"x5/16"
• Safe and certified nontoxic
• AP Certified nontoxic
• World's most popular crayons in the most-requested box sizes
• Bright, quality Crayola crayons in lift-lid box produce brilliant, even colors
• 3-5/8x5/16" crayons
• Certified non-toxic, permanent and waterproof
• Conforms to ASTM D-4236
• 24-count box