The following is how to create custom makeup brush handles for when they break or just look ugly to start with.
Step 1: Tools, Materials & Supplies
-Your choice of wood (I chose Wenge and Maple for this one)
-Quick drying epoxy
-For this brush I used two different woods so I had to glue the pieces together but otherwise I wouldn't need it
-Some type of brush (I typically pop the top off of a cheap one with a bad handle and replace it)
-Wipe on or some other type of Polyurethane (This helps to protect the wood and make the brush handle last much longer and for countless washes)
Step 2: Roughly Sketch & Pull the Brush Off the Handle
-Make a sketch of your desired handle
-Pull the brush head off of the original handle. This is easily done by hand with some wiggling like its a tooth.
-Measure the depth of the make up brush head to determine what size tenon your new handle will need.
Step 3: Measure and Cut to Length
-Figure out how long you want your brush to be
-Then cut it to length (be sure to cut it a little long for the lathe)
Step 4: Glue Up
-Glue the pieces together using a water proof glue such as Titebond III or other
-Clamp or secure them (If you don't have clamps you can certainly use a big book or some rubber bands)
Step 5: Mark Center & Lathe
-Find the center of your brush blank then drill a slight hole to attach it to the lathe with a spur center
-Then lathe away
-Once you've made the correct shape sand the handle smooth (I went up to 240 on some and 800 on others)
Side Note: If you don't have a lathe (this one was only $150 dollars) or you certainly could file and sand down the blank by hand. Such as in my Hatchet Handle Instructable.
Step 6: Finish With Polyurethane
-After some trial and error I found that wipe on Polyurethane isn't as shiny as it could've been so I took a can of semigloss polyurethane and didn't shake it. I repeat DO NOT SHAKE IT.
-Then just dip it in trying to avoid the bottom of the can.
Suggestion: You can avoid this by just buying gloss instead of semigloss polyurethane. I also encourage you to seek out and try other finishes as well as materials.
Step 7: Epoxy on Brush Handle
-We used 5 minute epoxy but you can use any type of epoxy. I'm not so sure I would trust superglue here.
-Make sure you tape up your brush so you don't get epoxy on the handle.