This has happened to me a few times. During/After Christmas I've realised that a toy or set or game could go with an extra figure or component to really make it work and (shamefully) have bought a few bits after Christmas!!!
Considering buying a baby yoda plushie but they're a bit too expensive and not so much an add-on but a substantial gift in itself. Not too much vitriol, anything veering towards a solution, esp if has been tried and tested, would be great! Birthday is in 5 months, by which time Mandalorian's moment might have passed.