Sample Dental Ads How Do I Get A DNA Sample For My Kids?

How do I get a DNA sample for my kids? - sample dental ads

I have a printer kit boy for my children, with fingerprints, dental charts and a photo section. It also has a pocket for a sample of hair. Supposedly a hairbrush that only children use, but my daughters and his wife have a toothbrush. Is there another way to hold them without getting the hair on his head? It is said that the need for roots and stay in touch folicals.
Gretly Any advice would be appreciated.