“Mykea” is a site for people who want to customize their ubiquitous Ikea furniture. The site has all kinds of transfers and iron-ons. This design is called “Ciao Bella!” and is for the “Malm” Ikea bed series. The price costs 27 – 55 Euros depending on which size you choose.
PS: Somehow I managed to forget who sent in this tip. (Thanks you whoever you are!)