Contact - TUBE FLARING TUBE FLARE ORFS FLARE 37 FLARE 45 FLARE

If you want to drop something without placing it, perhaps to give something to another player, you can press the Q key while holding it.

F3 + Q - Displays help menu that lists all debug menu shortcuts. F3 + A - Reloads all chunks. F3 + T - Reloads all textures, sounds and web-loaded client resources. This is useful for texture pack creators.