40 OOPS BIRTHDAY CARD FS125 - G0062 (98 ratings) 14x14cm £2.50 Quantity: at £2.50 each Add To Basket Oops you're 40! The funniest 40th birthday cards. Our Greeting Cards come with a Filthy Sentiments quote on the front and a blank inside. Adorned with the Filthy Sentiments logo on the reverse. All cards come are 350gsm card with a white envelope.