The ornamental design for a plasticlampshade formed from phonographic record, as shown and described.
FIG. 1 is a top perspective view of the plastic lamp shade formed from phonographic record, whereas the broken line showing of the lamp base and finial is for illustrative purposes only and forms no part of the claimed design.
FIG. 2 is a side view of the present invention; and,
FIG. 3 is a top plan view of the present invention.