The ornamental design for an arrowfletchingcaddy, as shown and described.
FIG. 1 is a perspective view of an arrow fletching caddy.
FIG. 2 is a front view thereof.
FIG. 3 is a rear view thereof.
FIG. 4 is a right side view thereof.
FIG. 5 is a left side view thereof.
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken line showing of the arrows and camouflage design of the arrow fletching caddy in the figures is for illustrative purposes and forms no part of the claimed design.