I would use this technique with Dialectical Behavioral theoretical approach for the reason that this theory focuses on clients with Borderline Personality Disorder. Clients who suffer from BPD tend to self harm, and suffer from distress and impairment in functioning. DBT is a comprehensive treatment that is has an acceptance base belief, that is grounded in a support oriented approach which emphasises each client's unique strength so that the clients can feel they are able to change. My treasure box technique will reinforce the therapeutic relationship, the consistent attention the client needs and it will help facilitate trust, and solidify the client's commitment to the therapeutic plan. The treasure box seems simple which is why it works
