Will the maker of prayer garments (isdal) and prayer rugs be rewarded if he takes money for them, and can he intend additional intentions when presenting these products?

Whoever sells something that aids in obedience [to God], and intends, along with profit, to help others in their obedience and encourage them in it, will be rewarded for that. The basis for this is the Prophet's (peace be upon him) saying: "Whoever guides to a good deed will have a reward similar to that of its doer," and his saying: "Whoever calls to guidance will have a reward similar to the rewards of those who follow him." Selling and seeking profit do not negate the reward, for the reward here is based on the sincere intention. An example of this is taking a fee for memorizing the Holy Quran; if the intention is pure, then this does not negate receiving the reward.