I emulated windows 98 while back and after fiddling around i found these backgrounds in the desktop background settings and i thought they looked cool so here you go you can use em whatever
preview:
Heres the links to em directly (They are very very small)
▽▽▽▽▽▽▽▽
EyeBackground CargoNet circuts FieldEffect Dizzy Key LiveWire Plaid Stone Thatches Tile Triangles WafflesRevenge