If you look an Amazon there are some pretty neat Challenge Coins with the eagle symbol. Some you can get engraved locally with the Scout's name, etc. Not expensive and a cool remembrance.

https://smile.amazon.com/gp/aw/d/B000YYM852/ref=mp_s_a_1_1?ie=UTF8&qid=1490539413&sr=8-1&pi=AC_SX236_SY340_FMwebp_QL65&keywords=eagle+scout+coin&dpPl=1&dpID=51WNB1BPH0L&ref=plSrch

There is also one with the Scout Law that I find particularly nice. Should invoke thought every time the Scout looks at it. It also has a good weight to it.

https://smile.amazon.com/gp/aw/d/B001T56O32/ref=pd_aw_sim_21_2?ie=UTF8&psc=1&refRID=86YV1P8BZ09AQDNER2MS&dpPl=1&dpID=51LaLCfGmrL

Don't worry about the link. It donates some percent of purchased to non-profits. In this case the BSA.