When I was a kid we used to press flowers and leaves in books. Every once in a while I still find a fern or a daisy in an old book. You can get the same feeling without the mildew!
If they all have four leaves, are they really lucky? Buy a lottery ticket!
I do not have a green thumb, in fact, it's like the thumb of death. This is one plant I could maybe, possibly keep looking fresh.
Available at: Perpetual Kid http://www.perpetualkid.com/power-planter.aspx ($16)
Itty Bitty fimo plants in teeny tiny terra cotta pots are easy to love and unfortunately easy to lose.
Fabric houseplants are totally the way to go. They never drop their leaves out of sadness like real plants.
Tiny apartments can be a real drag when you want to have a garden to tend. Just hang it!