You will need:
1 "space" or similar toy gun (to modify)
Small Phillips head screwdriver
Light weight Wire cutters (optional)
Plastic primer (optional)
Metal finish spray paint
'Stained glass' spray paint -several colors
ModgePodge or similar product
Step 1: Take the Gun Apart
Step 2: Take Off Clear Plastic Pieces
Note: There were two types of tiny screws used in my gun - a longer flatended screw for holding the two halves together; and a shorter, pointed tip screw used for attaching the interior bits and holding on the battery case cover. Don't use one if you want the other!
Step 3: Detach Electronic Stuff & Wrap
Because I was making these for a music festival, I decided that snipping the wires to the speaker would be a Good Idea... even if I hadn't been I might have done it anyway -that noise gets annoying fast.
Then put all the electronic bits - still attached to the gun - into plastic bags and secure with twist ties and/or tape. If the "laser light" has come loose, you should be able to pop it into a bag with the spindle piece - if it hasn't, you'll have to cover with a wee bit of tape.
* by which I mean: metal trigger bit, control board, spindle with lights, and LED 'target' light. I figured the rest would be pretty safe from spray drift.
Step 4: Spray Away!
If you want better coverage with less effort, using plastic primer before the metallic paint would probably work like a champ - I wasn't quite up for it.
Step 5: Reassemble Gun
Do NOT put your clear plastic bits back on yet.
Slap one side over the other and screw it down - you'll be taking it apart again, so only use enough screws to ensure the sides fit together tightly. NOTE: be careful not to pinch the wires between the plastic bits when reassembling the gun - it's easy to do.
Step 6: "Patina" the Gun
So, mix up some ModgePodge with tempera paint until you get a greyish/purplish/bluish sort of color- or whatever you prefer - and paint it on. Do a section at a time - paint on the mixture, making sure to get into the recesses where grime would accumulate, and then using a crumpled paper towel, blot it off.
HINT: to eliminate clear edges when applying patina start blotting at the edges of your painted area and work your way into the center. Avoid using a paper towel with a clearly visible embossed pattern, unless you're going for that look.
As the towel becomes saturated you can also use it to blend in and over raised areas - especially seams. You can go back over areas several times to darken and emphasize them if you want.
Step 7: Back to the Plastic Bits....
I started with a base coat of yellow, and then added in the other colors on top while still wet, to let them blend a bit. For the nose cone and the 'firing chamber' globe, I decided to texture the paint, so I sprayed them and then - while the paint was still wet - used scrunched up paper towels to create a textured surface. Because there's a limited time span to do this in, I did the 'firing chamber' globe halves in one go, and then the nose cone in another.
If you don't like the scrunched texture, don't do it. If you don't like your first attempt at the texture, you can spray it again, and try again... you want to press down once and then lift without dragging the paint as much as possible for best results. Again, choose a cheaper paper towel without a visible embossed pattern.
The other bits I just sprayed slightly randomly, so they more or less matched tone-wise.
Step 8: Put It All Back Together, and Fire at Will!
Before you close the gun up and screw everything down tight, test it. If it works*, you're golden - put the halves back together, screw everything in, and have at it!
*If it doesn't, best figure out where you buggered it up, because the instructions were perfect!