the kenka are the numerous flowers, which are offered to the spirit of a deceased person; the ones on the pictures were offered to the spirit of late Nakamura Tomijûrô V, who died in Tôkyô the 3rd of January 2011 and were displayed in Asakusa, along the Asakusa Kôkaidô, where you can find Kabuki actors handprints.

The left picture is courtesy of Rokujôtei