Ending today, Skinit cuts $10 off any purchase via coupon code "COMEBACK10". That's tied with our mention from last week as the best dollar-off discount we've seen from Skinit, which sells custom vinyl skins and cases for laptops, desktops, MP3 players, iPhones, PDAs, and more. Shipping starts at $2.99. After the discount, iPhone skins start at $4.99, Kindle Fire skins start at $14.99, and iPad skins start at $19.99, among others.