Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
Replace "light" with "sausages" and this may work...

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science: spacecraft: propulsion
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Ideas are sorted alphabetically.
Ideas in bold have been created this week.
 (+1)  Acoustic rocket engine 
 (+1)  Air-barrier rocket nozzle 
 (+8, -3)  Autophagic Heavy-Pykrete Starship 
 (+5, -2)  Bernoulli's Spaceplane 
 (+6)  Bungee Rocket 
 (+1, -3)  Bussard Centrifuge 
 (+5)  Cavitation plasma induction impulse drive 
 (+3)  Cheap Piston Turbopump for tiny rockets 
   chemical ion hybridengine 
   Cold Fusion Rocket Engine 
   COM Shifting 
 (+4)  Continuous Burn Nuclear Drive 
 (+2, -3)  Deep space Probe 
 (-1)  Depleted uranium rocket engine. 
 (+8)(+8)  Digital camera parts tray 
 (+2)  Dust Jet 
 (+2)  Electron Propulsion 
 (+1)  Energy-Recovering Landing-Softener 
   Enhanced gyroscopic force generator 
 (+8)(+8)  Fusion Beam 
 (+3)  Gas giant dipper 
 (+8, -5)  Glowworm powered spacecraft 
 (+5, -4)  Going my way? 
 (+1)  Green rocket flue. 
 (+7, -1)  Gulper rocket 
   Heat reservoir screw rocket 
 (+2, -8)(+2, -8)  here is your flying car 
 (+1, -4)  Hybrid Rocket/Flywheel Spaceship Propulsion 
 (-1)  Improper Space Spitfire 
 (+4, -3)  Incremental stage rocket 
 (+14, -2)(+14, -2)  Interstellar travel by fungus 
 (+1, -3)  ion accelerated engine 
   Ionospheric Propulsion 
 (+4, -2)  Iterative space railgun 
 (+4)  Jet engine + lox = rocket 
 (+1)  Laser shockwave accelerator 
 (+1, -3)  mass shifting drive 
   Momentum for Free? 
 (-5)(-5)  Moon Raft Transport 
 (+5, -4)  Nanotube fuel 
 (+3, -9)(+3, -9)  Nuclear-Bungee Spaceship 
 (+8, -3)  Open Chamber Fusion Engine 
 (+2, -1)  Orbital Centrifuge 
   Orion-style cargo launcher 
 (+1)  Party Popper Rocket 
 (+1)  Pellet Stream 
 (+23)(+23)(+23)  Piston Rocket 
 (+2, -1)  polar space mass lazer launch 
 (+3, -10)(+3, -10)  Propellant-less Propulsion System 
 (+3, -1)  Proper space Spitfire 
 (+5, -1)  Restacked Rockets 
 (+1, -2)  Reverse fusion ion drive 
 (+2)  Rocket soap 
   rocket tube 
 (+6)  Rotational effect ion engine 
 (+2)  Slow Burn Orion Drive 
 (+12, -3)(+12, -3)  Space Elevator Light 
 (+13, -2)(+13, -2)  Space Kite 
 (+13)(+13)  Space Rail and Pacman Rocket 
   Space Rail Gun in the Back Yard 
   Steam Space Launch Facility 
 (+2)  strawberry space load launcher 
 (+2)  Thermal turbopump for N-Prize 
 (+8, -1)  Thermite dry ice rocket 
   Trek Prize 
 (+3)  Unobtanium fission rocket 
   Venturi Rocket Injection 
 (+1, -3)  Vertical Spacecraft Accelerator 
 (+5, -3)  water launcher 
 (+11, -1)(+11, -1)  Whipcrack satellite launcher 
 (-2)  Yet Another Reactionless Drive 

 

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