Wizard expressed a desire for a magical wand that could cast the ritual spell Illusory Script without burning a spell slot/ritual slot. I though about giving a wand that can cast the spell once per day. Seems relatively fair for a magical item but not sure if there are any balance implications.
There is no balance issue
But it is so weak that you shouldn't count it towards the magic items the character has if you have some sort of strict resource system. Illusory script is a first level spell that's also a ritual, so a wizard who knows the spell can already cast it whenever they want to as long as they have a couple of minutes of time and the (not very expensive) spell components. The wand doesn't really grant them anything a first level wizard wouldn't already be able to do, so there can't be a balance issue even if you ignore the fact that Illusory Script is already a spell with at best marginal utility.