Remember growing up in 19th century and learning the language of flowers? Red roses for passionate love. White roses for purity. Pink roses for growing affection. And then rainbow roses for “this person is a time traveler from the future. His name is H. G. Wells.”
The future is now.
Dutch companies River Flowers and Zandberge are producing rainbow roses. They make them by splitting the stem into channels and dipping each in different colored water, so it actually sounds like something you could duplicate in your own home. Now get back to work on your time machine so you can freak out some Victorians.