If cost is a big factor, you could just spray paint the pots black and then tie a satin ribbon/bow around it. You could also buy fabric and just gather it up around the pots as well.

If cost is not prohibitive, I love the idea of using the square clear glass flower vases with a few clear marbles in the bottom to support the stem of one elegant orchid.

Luvs

I agree, use spray paint for plastic and then a ribbons around the top.-

Thanks for the replies. I never thought of spray painting the pot. Maybe I will try that. The fabric might also be nice, I will experiment on one pot and see.

You may also try a gift bag that is black, tuck in white tissue or patterned black and white tissue. Put something in bottom if necessary to raise the actual pot up a bit from bottom. Also, since orchids are not really always in 'dirt' you can just use a piece of driftwood and attached it and cover with some moss.