For example, oxygenating attachment 700 may or may not have bristles (e.g., such as bristles 320) attached to a base surface which is attached to a head portion, and may have holes or openings through the base material at center portion 706 sufficient to communicate or let pass a gas, such as oxygen or air, seeping, pressured, or forced through openings 710 to surface 726 and through the opening i