A CD IRA works.
Can she live on her first pension alone? It is ultimately her money, so do remember that, but the answer to this question would inform how much pressure I'd put on a relative about something like this.
One very nice thing about having her want to save rather than spend the money is that if she wants to deposit it even in a regular savings account for now but agrees to a different investment vehicle down the road, say a year from now when having the money seems like less of a big deal, the money should still be there to invest differently if desired.