The ornamental design for a split-fingered oven mitten, as shown.
FIG. 1 illustrating a plan view of an ornamental split-fingered oven mitten in accordance with the present invention;
FIG. 2 illustrating a bottom view of an ornamental split-fingered oven mitten in accordance with the present invention;
FIG. 3 illustrating a side view of an ornamental split-fingered oven mitten in accordance with the present invention;
FIG. 4 illustrating a plan view of a folded ornamental split-fingered oven mitten in accordance with the present invention;
FIG. 5 illustrating a plan view of a folded ornamental split-fingered oven mitten being worn on a user's hand in accordance with the present invention; and,
FIG. 6 illustrating a side view of a folded ornamental split-fingered oven mitten being worn on a user's hand in accordance with the present invention.
The broken line showing of a human hand is for illustrative purposes only and forms no part of the claimed design.