There are many ways to achieving perfect finishes to objects, and there are many articles that do a better job of explaining finishing than this one. However, this is how I myself finish my scroll saw projects, without need to flip over the object. Using this method, you can finish all sides at once. However, you may not be able to use this method on objects that lack holes.
Step 1: Supplies Needed
You will need a spray lacquer-in this case, I used some musical instrument spray lacquer leftover from another project. You will also need a thin string, and something to tie your project to- I used a clothes line. When using spray lacquer- or any finish that has fumes, or even sanding- use a dust mask.
Step 2: Tie Your Project to a High-up Bar
First, make sure you have clear skies and that there isn't a lot of humidity. This may be hard if you live in high-humidity areas, so you may want to try this method inside. Push a string through your object, using the uppermost hole you can find-and preferably one that leaves the object balanced evenly on the string. Then bring the two ends of the string over your bar, and tie a strong knot, leaving the object hanging evenly. Commence Spraying.
Step 3: Spray and Let It Dry...And Repeat.
Spray your first coat on. Check it to make sure you didn't leave any high spots, and make sure there are no runs or bubbles. Follow the directions on your spray can as to how long to let the object dry between coats; For me, this was an hour. I put on two coats, and forgot to take a good quality picture of the second coat before I delivered the cross. Hopefully this method will work for you, and I apologize for the low quality pictures- I am still learning how to use my digital camera properly.