I recently did a small project with the case made of 2 layers of bent laminated 1/8" ply that I applied quilted maple veneer to the outside and flat cut maple veneer on the inside. Not having a vacuume set up I had the idea to try using what are called Space Bags that I bought at Wallmart for a few dollars. All you need is a good shop vac. The bags are used to store clothes in. You can buy different sizes of bags. I had no problem holding a vacuume overnite but care must be taken on the corners or other sharp edges so you don't punch a hole in the bag. Tape the edges and corners well! I veneered one side at a time. Although the veneer was fairly flat, I think it would work for bubblier type veneers if you placed a stiffner between the bag and veneer.
Please note, I did not glue laminate the panels with these bags.