I wasn't able to take a photograph of them, but at the local shopping centre was a pop-up stand with vibrant roses in various floral arrangements - all were very reasonably priced (e.g. takeaway meal to save trying to convert prices for the global audience) - The colours weren't the usual ones you'd expect to see on roses.  When you look closer and get talking to the stall trader you find out the petals are made of wood-shavings, shaped into rose petals and colourised.

A couple of drops of perfume on the foam they are inserted into and you have fragrant roses that last indefinitely.