shadow boxes!

[corazon.livejournal.com]

hi everyone!!!
i got some really cool empty shadow boxes at ikea last week, and i want to suspend some stuff in them and i was wondering what the best way to do that is. the stuff i want to put in is too heavy for pins or thumbtacks.. i thought you ladies would have some excellent ideas!!

(shadow boxes are rectangular boxes usually made of wood and are about 3 inches deep with a glass front so you can put little objects, dried flowers, ect. in them )

thanks!!!