Philodendron 'Black Cardinal' would grow upright rather than trailing with the others, but its dark foliage makes quite a statement! Bright, indirect light, evenly moist (but not constantly wet).
Pinstrip Prayer Plant
Burro's Tail Sedum
Burro's Tail (Sedum morganianum) can trail to 3 feet long! It would prefer bright light, so might be an experiment among lower light plants. Also fairly fragile to the touch, so best where it's out of room traffic.