eBay with vipoutlet has the ThunderShirt Classic Dog Anxiety Jacket (X-Large, 65 - 110lbs, Gray) on sale for $11 - 10% off auto-applied in cart = $9.90 with free shipping. Used for calming dogs during fireworks / thunder / vet vists.  Other sizes: 

• Small Jacket (15 to 25lbs) for $8.10.
• Medium Jacket (26 to 40 lbs) for $9.
• Large Jacket (41 to 64lbs) for $8.10.