The text under wands in the main rules says (pg 17);
Wands can be acquired in the Workshop for three glyphs. Their function is indicated by a single glyph and they allow the wizard with the wand to use any glyph as if it were a glyph of the indicated type.
This ability extends to glyphs they receive from other wizards via shared glyph, but they are not able to use it to supply an altered glyph to another wizard.
The Shared Glyph secion (pg 15)
Other players can use a shared
glyph to cast spells, but not to pay other costs.
The Gimoire for the Workshop says;
You may spend a room action to acquire a wand. If you do, pay three glyphs from your glyph collection. Take a glyph that matches one of these from the supply and place it onto your wand space.
I'm fairly certain this means all three glyphs for creating your wand must come from your own collection. The last part of the Wand paragraph (I've separated it in the first quote). Means that you can use the ability of the wand on a shared glyphs. A #1 Glyph in another player's share box, can be used as which ever glyph your wand is for, but only by you, after creating your wand.