I got my March issue of Digital Photographer and one of the articles was, "In Camera Multiple Exposures". I thought I'd give it a try. These are the flowers I got my wife for Valentine's Day. I did two shots. One a full shot of flowers and vase and one zoomed in on one of the daisies.
That's cool- at first the size difference did not register in my brain! Now that I look at it after reading the commentary, it's really well done! Nice effect!