Your search for "mustard yellow" revealed the following:

Lion Foil Balloon | 32 INCH
New
Out stock
$6.50
Buttercup Yellow Crepe Paper Party Streamers | 81'
New
Out stock
$1.50
Fashion Yellow | 5 Inch | Sempertex (Betallatex) Latex Balloons | Package 10
New
Out stock
$1.95
5 INCH | Tuftex Latex Balloons | Package 10
New
Out stock
$2.15
Pastel Yellow Swirls Candy Balloons | 18 INCH
New
Out stock
$2.00
Best Day Every Cocktail Paper Napkins | Set 16
New
Out stock
$5.95
Matte Pastel Yellow  | 36 Inch | Sempertex (Betallatex) Latex Balloons
New
Out stock
$6.00
Yellow | 5 INCH | Tuftex Latex Balloons | Package 10
New
Out stock
$1.95
Primrose Light Yellow Crepe Paper Party Streamers | 81'
New
Out stock
$1.50
Lemonade | 11 INCH | Tuftex Latex Balloons
New
Out stock
$3.50
Crystal Yellow | 24 INCH | Tuftex Latex Balloons | Each
New
Out stock
$1.95
Pearl Yellow | 11 INCH | Tuftex Latex Balloons | Package 10
New
Out stock
$3.50