Hairspray (Aqua Net)	Pros: This is the basic for most beginners. Fairly good performance Cons: Leaves a sticky residue in chamber. Smells bad when burned. Not very strong.
WD-40	Pros: Step up from hairspray. More powerful and loud noise with orange flame            Cons: The WD-40 Company changed the propellent from propane to carbon dioxide so it is now nonflammable but older cans may still work.
Deodorant (Right Guard)	Pros: Better than hairspray, very good power and distance plus burns cleanly. Cons: Some brands/types may perform better than others.
Silicone Spray	Pros: Good power, large flame, loud noise and good distance Cons: Needs a lot to work good. Smells bad when burned.
Carburetor Cleaner (GumOut)	Pros: Loud Bang, very good power and distance plus large flame with smoke. Cons: Smells bad when burned, smoke, may leave residue.
Starting Fluid [Either] (Liquid-Fire)	Pros: Probably the most powerful of the aerosol fuels. Very loud bang and long distance. Cons: Evaporates quickly. May be dangerous if too much is used. Leaves soot/residue.

Alcohol (90% Isopropyl rubbing alcohol; Denatured alcohol; Methanol)	Pros: Burns very cleanly. Good but weird "poof" sound. Fair distance/perfomance Cons: Not very strong unless a large amount is used. Sometimes stays burning instead of extinguishing (may melt some plastics). Flame is colorless and not visible unless shot at night.
RC Model Fuel [20% nitromethanol]	Pros: Burns clean with good power. Good distance/peformance. Cool looking white flame (only visible at night). Cons: May be hard to find (mostly available from hobby stores). Flame is colorless and not visible except at night. May melt some plastics.
Unleaded Gasoline	Pros: Readily available and easy to find. Very good power and distance plus loud boom and large yellow/orange flame. Cons: May leave residue in chamber. Small amount of smoke. May be expensive in this day and age of high gas prices. Smells bad when burned.
White Gas (Coleman Lantern Fuel)	Pro: Most powerful of the liquid fuels. Very good distance and performance. Very clean burning with little or no residue/gumming. Cons: Use only a small amount. May be hard to get depending on your location (mostly available from sporting goods stores) Available mostly in the US.

Methane [Natural Gas]	Pros: Readily available and inexpensive fuel. Good power and distance. Easy to find if you have a gas stove, furnace, water heater, or fireplace. Burns clean. Cons: Takes a while to load especially when using a stove to dispense but faster when using the fireplace gas jet. Natural gas is mostly lighter than air so you may need to hold the gun facing upward to help collect the gas. Some areas may not have natural gas service or may use propane instead
Butane (Bernz-O-Matic; butane gas lighter refill; Chinese-made camping stove)	Pros: Easy to find, good performance/distance, clean burning. Cons: May be hard to dispense (One method I used was to find a nozzle from an aerosol spray can that would fit onto the top stem of a butane lighter refill then spray the gas in like an aerosol fuel). Cold gas on heated plastic may cause cracking.
Propane (Coleman/Bernz-O-Matic 16 oz disposable can)	Pros: Propane is the best fuels for intermediate users. Very powerful and excellent distance. Burns cleanly.  Readily available and inexpensive. Cons: May need a blow torch to dispense
Coleman Powermax Fuel	Pros: Very good power, distance and loud bang. Excellent cold-weather performance. This is a special high performance propane and butane mixture. Cons: Hard to find (mostly available in sporting-goods stores). Needs a proprietary attachment and regulator/valve to dispense (I took a camp stove apart for the regulator).
MAPP Gas [Methyl-acetylene-propanol] (Bernz-O-Matic)	Pros: Extremely powerful but fairly safe fuel. Very loud boom/noise, long distance plus large blue-orange flame. Cons: Needs a blow torch to dispense. Leaves soot in chamber.
Acetylene	Pros: Extremely powerful. Most powerful and dangerous of all gas fuels. Huge boom/recoil with very large flame and very long distance (1/4-1/2 mile) Cons: Extremely dangerous and unstable fuel (especially when a lot is used). Use only in very large plastic or all-metal guns. Recommended only for professional spudders. Needs a blow torch to dispense.

Fuel plus oxygen	You have to be crazy to try this. Only use in a metal gun. I highly recommended this only for professional spudders. Don't try this at home kids!
Fuel plus nitrogen oxide [a.k.a. NOS]	Nitrous Oxide is also an oxidizer but is more stable than pure oxygen as the nitrogen acts as a buffering agent to slow combustion down to a safer rate. Nitrous however is expensive to fill and sometimes hard to locate. (I'm not a ricer)