Our nursery has a chair-rail around it and was painted green below and blue above for our older 2 boys. The boys' crib had pale green and blue bedding in a toile pattern. When I found out I was pregnant with boy/girl twins i painted pink over the blue on one wall of the nursery (which makes it green below the chair-rail and pink above which looks really nice together). I bought a crib identical to the other crib which also matches all the other furniture in the room. And I found a pink toile crib set for Sisi's crib bedding.
I agree that it is HARD finding products for boy/girl twins. I had a very hard time finding cute photocard layouts for the twins' birth announcements. There was very little to choose from.
" I object to violence because when it appears to do good, the good is only temporary; the evil it does is permanent." Mahatma Gandhi
"This is the ultimate weakness of violence: It multiplies evil and violence in the universe. It doesn't solve any problems." Martin Luther King, Jr.