Make DS beau of the ball!

[flowerybeanbag]

hello lovely helpful style experts.
Myself, DH and DS are off to a wedding end August in Ireland. Naturally I sorted out my own outfit ages ago, but I want my DS (pfb can you tell ) to look special, he will be 3 1/2 months.
Where can I buy him something? Needs to be online as will struggle to get to decent shops in next few weeks.

TIA

no, no denim dungarees.

Actually I lie, he was bought 3 or 4 dungaree outfits, but doesn't wear them as seem like a LOT of hassle for me.