First off, I have NO idea how they enginered this so don't ask me.

It's a variation on the Message Plant. You just open the can, add water and within a matter of hours the egg will begin to crack as a bean plant begins to grow -- with your message on it. The bean will germinate in about 5 to 7 days, at which time your perplexed boyfriend/husband/co-worker will see your message.

"I Love you," Happy Brithday," "Good Luck" -- you name it.

Available at I Want One Of Those for £4.99