Forrest also plays Gon Bops Mariano Congas, Mariano bongos, and Mariano Djembes. The Ditty Bops have covered Boswell Sisters songs in concert. It also hosts "bops" five times a term in Michaelmas term and Hilary term. In other scenes, Amel bops in front a city skyline. Single ram and double ram BOPs are commonly available. The yard has delivered 9 out of an order of 14 BOPs. "The Three Little Bops Plus One". Upright bass was performed by Ian Walker (k.d. lang, Cher, Paula Cole, The Ditty Bops). Hydraulic rams BOPs were in use by the 1940s. Triple ram BOPs are also manufactured, but not as common. The BoPs were all located on this line. BOPs on offshore rigs are mounted below the rig deck. Particular highlights include termly bops, which are among the largest student-run parties in Oxford. Ram BOPs for use in deepwater applications universally employ hydraulic actuation. Essentially these BOPs are floating police stations with four high-speed boats.