Tex. Human Resources Code § 242.062

(a) Proceeds from the operation of canteens and vending machines at facilities under the jurisdiction of the department shall be deposited to the credit of a special account in the General Revenue Fund called the canteen revolving fund. The proceeds shall be used to pay the actual expenses of maintaining and operating the canteens and vending machines.

(b) Proceeds in excess of the amount required for the expenses described by Subsection (a), donations for student activities, and proceeds from children's fundraising projects shall be deposited to the credit of a special account in the General Revenue Fund called the student benefit fund and may be used only to:

(1) provide education, recreation, and entertainment to children committed to the department; or

(2) reimburse children committed to the department for personal property lost or damaged as a result of negligence by the staff of the department.

(c) Proceeds from shop projects at the facilities under the department's jurisdiction shall be deposited to the credit of a special account in the General Revenue Fund called the vocational shop fund and may be used only to:

(1) purchase and maintain parts, tools, and other supplies necessary for the shop projects; and

(2) compensate the students who participate in the projects.

(d) Registration fees from seminars and conferences conducted by the department shall be deposited to the credit of a special account in the General Revenue Fund called the conference account and may be used only to pay the costs of conducting seminars and conferences.

(e) Money in the special accounts described by this section is appropriated for the purposes indicated in this section and shall be expended on warrants drawn by the comptroller on the order of the department.