Window Boxes

Window Boxes

Does anyone know of window boxes which can be hooked onto window frames rather than screwed to the house? I need something easily removable for my apartment. Landlords--not so friendly about semi-permanent installations.
My room :)

My room :)

fungus among us!

fungus among us!

Plant ID and possible fungus ID

Plant ID and possible fungus ID

Customizing decore

Customizing decore

Are they lilies?

Are they lilies?

What is this?

What is this?