Adorama offers the Canon PSC-1050 Deluxe Fitted Leather Case for the Powershot in Black, model no. 4030B001, for $3.99. Buy three and it drops to $2.97. With free shipping, that's 99 cents per case and $27 under the lowest total price we could find for this quantity elsewhere. It's compatible with Canon Powershot Elph 300 HS, SD1400 IS, SD940 IS, and SD780 IS digital cameras.
Retailers mark up products by hundreds of times their cost — but you don't have to pay the premium.