Abstract: An applicator includes a hollow body having a central longitudinal axis to hold a colored ink, a shoulder portion, a central recessed portion, and a base portion. The shoulder portion is located above and merging with the central recessed portion at an upper end thereof and includes a top wall having an opening. The base portion is located below and merges with the central recessed portion at a lower end thereof and includes a bottom wall. The central recessed portion has a smooth continuous sidewall formed as an oval with major and minor diameters. The central recessed portion merges with the sidewall portion of the shoulder portion at major upper flared surfaces and at minor upper flared surfaces. The major axis decreases uniformly toward the center. The minor axis has a substantially constant dimension.