Set Maximum Price

Hi,

Is there way to set a MAX price or cap the price they can do.

For example, at the moment we price each fancy design individually - Let's say I price every fancy design at £5 each. If they go ahead and have 10 designs on one T shirt - That T shirt will then be over £50. But really I could sell this for £25 as it would be done with DTG printer.

Does that make sense?

Many thanks!