Let's take a scroll as an example, but this would apply to wands and the like as well. The SRD says the following about scribing scrolls:
The base price of a scroll is its spell level × its caster level × 25 gp.
Now assume a person of caster lvl 4 wants to make a scroll of a first lvl spell. Is there any way to make this scroll AS IF you are caster lvl 1? Thus letting all effects that scale with caster lvl be reduced to 1, but also reducing the crafting costs?