Here
you can get unsanded grout in 8 colors and a nice white
tile mortar
which is appropriate for items you're making for
outdoor use as well as
art projects. The grout is sold in 1/2
pound units.
One nice thing about cement based grout is that is cleans
up fairly easily throughout the entire project. You can get
quite a few different colors of grout at The Home Depot in
both sanded and unsanded mixtures.
Once again, cement based grout is a good choice for projects
both indoor and outdoor. Sanded grout is better for outdoor
projects and is necessary if your grout lines are wider than
1/8".
Cement based tile mortar which is specifically formulated
for
use with glass tile and porcelain. This mortar is good for
use when
you are making things which will be left outside.