Barton County Gift Shop: The Happy Heart Boutique Address 29 NW First Lane Lamar, MO 64759 location Get Directions Phone: 417-681-5566 Hours Monday – Thursday, 9 a.m.–3 p.m.Friday, 9 a.m.–12 p.m. About In Barton County, you’ll find a variety of gift items, cards, magazines, toiletry items, snacks and more. The gift shop is conveniently located in the main lobby of the hospital.