https://www.patreon.com/posts/field-booster-32099078
"Field Booster (for items)
Found this, and decided to put it up here for you guys to use. (its in the pdf attached)
The item with the field you wish to grow should be placed on a printed copy of the sigil, you then you say the keyword to activate it.
Leave the item untouched on the sigil for the duration of the growth which should be one hour.
You can re-use it as much as you want.
It may be possible to grow any kind of psychic or magical item as long as there is a coherent field present on the item."