Tummy time with a 2 month old

My daughter is 2 months old and isn't a big fan of "Tummy time".  She can handle it for a minute or two, but then becomes fussy and eventually starts to lose it. 

The couple of things that have worked so far include:
- Putting her on my chest, instead of on the ground
- Propping her up with a boppy pillow, so she can still look around
- Letting her experience tummy time for only a couple of minutes at a time...before she loses her patience

Anyone have advice about ways to get her more comfortable with being on her belly???

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