Great minds think alike I guess! I would check out different places for the fake pears. I know some of them are really heavy and solid and some are a lot lighter. If you find that they are floating, maybe you could tie a have charm or something on them to help them sink. Either that or try like the glass gemstones and fill the vase with those. You could get some light green ones. I know that Dollar Tree stores carry light green ones for $1 a bag (16 oz. bag). Hope that helps!