The ornamental design for a pacifier for babies, as shown.
FIG. 1 shows a top view of the first embodiment with the sucking nipple shown in silhouette;
FIG. 2 shows a bottom view of the first embodiment with the sucking nipple shown in silhouette;
FIG. 3 shows a front view of the first embodiment with the sucking nipple shown in silhouette;
FIG. 4 shows a back view of the first embodiment with the sucking nipple shown in silhouette;
FIG. 5 shows a left view of the first embodiment with the sucking nipple shown in silhouette;
FIG. 6 shows a right view of the first embodiment with the sucking nipple shown in silhouette; and,
FIG. 7 shows a top, front and left perspective view of the first embodiment with the sucking nipple shown in silhouette.
The broken line showing of the sucking nipple in the figures illustrates a portion of the pacifier for babies which forms no part of the claimed design.