This is a cake I made for my co-worker's boyfriend's b-day. It is chocolate cake with choc buttercream, covered in MMF, filled with oreo cookie/choc buttercream. I used a fondant covered oreo cookie straw for the canon. The trees worked out really well- they are gumpaste with painted on choc and the branches/leaves are grape vines dipped in green choc (suggested by someone on cake central)