Hi,
if you have the abilities, tools and materials, you can always scratchbuild your own wand:)
Here's the one I made from an aluminium pipe and a domed M6 nut.
The only special tool needed here is a thread maker to add the nut on the end of the wand. You can bend it on a glass bottle into any shape, but remember to fill it with sand to get nice bends. The cool thing is that you can make your own tip, so you decide how big the hole is, or how many holes to use.
Or you can always try fitting a Silvia wand, it also works great.
Cheers,
dsc.