Please help me locate these flags for a Battle of the Flags

I admit that until recently I have paid little attention to the Flags of various countries. I knew only our own flag, of course, and the flags of Canada and the UK.

All of us now know the Ukrainian flag.

A neighbor who moved in across the hall from me about a year ago has had two identical criss-crossed flags on her door since moving in. I wondered what they were but since they are red, white, and blue, I thought they were meant to reflect the US colors.

I just discovered that they are the flag of effing Russia! A band of white on top, followed by a band of blue and then a band of red.

So I am looking for a US and a Ukranian flag of the same size to criss-cross on my door. The size is small, like a little child would carry.

EDIT UPDATE: I found that Wal-Mart carries both the US and Ukranian flags in the size I want.

Where can I get those flags in that size?