Explanations of what you see:
1.) Brown wand shaft with multiple snakes wrapped around lower half. Snakes would be raised above the wand shaft level ( like Hermione's vines on her wand). Base of wand has a silver band and a round/ball base.
2.) Black wand shaft with one long brown snake wrapped around lower half. Snake, as number 1, is raised/on top of wand shaft. Base of wand is a green (hint to Slytherin house colors) faceted sort of base. Could also add a silver band above this to have both house colors in the wand. I would rub black paint into the etchings to give the snakes a black outline to stand out against the color of the wand shaft.
3.) An olive green/brownish color wand. Entire wand would be covered in clay, then the 2 snakes would be etched into the clay. The lower end of the wand has a thin black band, and then a kind of rounded arrow type cap base.
4.) A black wand shaft with 2 snakes (raised on top of shaft) of differing shades of brown ( here a reddish brown and an lighter brown) make a criss cross pattern for the handle. There are black bands, and gold bands that also adorn the wand above and below the snakes. The base would be this pearlized/semi opaque white rounded tip ( much like the end of the McGonagall wand the Noble Collection makes).
5.) a dark brown wand shaft with a lighter brown handle color. The snakes could either be etched into the clay or raised on top of it, but each ( I'm thinking 3 maybe if multiple - would appear to wriggled straight up to the tip. Or there could just be one snake ( either raised or etched in). A dark brown band is above the snake and a dark brown flattened rounded base is below it.
6.) A reddish brown wand shaft with 3 (maybe four) black snakes wriggling up the shaft. Below the snakes would be 3 dark brown rounded bands and a ball base of the same color
7.)A light brown wand shaft with a slightly darker (but still light) brown handle color. Multiple snakes would be etched into the clay covering the handle. I could rub both back and brown paint into the etchings to try to differentiate each snake. Or I could either keep the snakes uniform ( all outlined in either all black or all brown). Bronze bands are above and below the etchings of the snakes. Then a black band and a faceted black base.