The invention relates to a bone filler comprising calcium salt particles, an organic binder having an affinity for calcium phosphate, cells chosen from the group of stem cells, osteogenic cells, and osteoprogenitor cells, and a pharmaceutically acceptable buffer. The float may be disguised as a water plant, fallen tree leaf, twig or other floating detritus or water creature. The pressure intensifying valve is situated to direct fluid to the reservoir while in a first position and direct fluid to the hydraulic actuator while in a second position. A conduit extends between the inner and outer walls and includes a passage formed therethrough.